{"id":4540,"date":"2024-05-10T11:02:25","date_gmt":"2024-05-10T03:02:25","guid":{"rendered":"https:\/\/www.lcettsg.cn\/code\/?p=4540"},"modified":"2024-05-17T10:49:32","modified_gmt":"2024-05-17T02:49:32","slug":"numpy%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b02","status":"publish","type":"post","link":"https:\/\/www.lcettsg.cn\/code\/?p=4540","title":{"rendered":"Numpy\u5b66\u4e60\u7b14\u8bb02"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.bilibili.com\/video\/BV1BA41197ZU?p=36&amp;spm_id_from=pageDriver&amp;vd_source=e1e965c6d34ccad0cc6841ecb58eb4a5\">https:\/\/www.bilibili.com\/video\/BV1BA41197ZU?p=36&amp;spm_id_from=pageDriver&amp;vd_source=e1e965c6d34ccad0cc6841ecb58eb4a5<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u524d\u7f6e\u77e5\u8bc6<\/h2>\n\n\n\n<p>1.python\u57fa\u7840\u8bed\u8a00<br>2.\u91cd\u70b9Python\u5185\u7f6e\u6570\u636e\u7ed3\u6784\uff1a\u5217\u8868\u3001\u5b57\u7b26\u4e32\u3001\u5143\u7ec4\u3001\u96c6\u5408\u548c\u5b57\u5178\u3002<br>3.\u5e8f\u5217\u7684\u7d22\u5f15\u548c\u5207\u7247\u64cd\u4f5c\u3002<br>4.\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u96c6\u5408\u63a8\u5bfc\u5f0f\u3001\u5b57\u5178\u63a8\u5bfc\u5f0f<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"965\" height=\"410\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-92.png\" alt=\"\" class=\"wp-image-4541\" style=\"aspect-ratio:2.3536585365853657;width:626px;height:auto\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-92.png 965w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-92-500x212.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-92-768x326.png 768w\" sizes=\"(max-width: 965px) 100vw, 965px\" \/><\/figure>\n\n\n\n<p>5.lambda\u8868\u8fbe\u5f0f<br>6.Python\u4e09\u4e2a\u51fd\u6570\u5f0f\u7f16\u7a0b\u57fa\u7840\u7684\u51fd\u6570\uff1afliter()\u3001map()\u548creduce()\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"921\" height=\"160\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-93.png\" alt=\"\" class=\"wp-image-4544\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-93.png 921w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-93-500x87.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-93-768x133.png 768w\" sizes=\"(max-width: 921px) 100vw, 921px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2.Numpy\u662f\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n<p>NumPy\uff08Numerical Python\u7684\u7f29\u5199\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u7684Python\u6570\u636e\u5206\u6790\u548c\u79d1\u5b66\u8ba1\u7b97\u5e93\u3002<br>1.NumPyj Pandas(\u6570\u636e\u5206\u6790\uff09\u3001SciPy(\u79d1\u5b66\u8ba1\u7b97\uff09\u548cMatplotlib\uff08\u7ed8\u56fe\u5e93\uff09\u57fa\u7840\u3002<br>2.\u56fe\u50cf\u5904\u7406OpenCV for Python\u4e2d\u4e5f\u5927\u91cf\u4f7f\u7528NumPy\u3002<br>3.NumPy\u5b98\u7f51\uff1ahttp:\/\/www.numpy.org\/<br>4.Numpy\u6e90\u4ee3\u7801\uff1ahttps:\/\/github.com\/numpy\/numpy<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.3\u4e3a\u4ec0\u4e48\u9009\u62e9Numpy<\/h2>\n\n\n\n<p>1.Python\u5199\u51fa\u6613\u8bfb\u3001\u6574\u6d01\u5e76\u4e14\u7f3a\u9677\u6700\u5c11\u7684\u4ee3\u7801\u3002<br>2.Numpy\u5e95\u5c42\u662f\u7528C\u8bed\u8a00\u5b9e\u73b0\u901f\u5ea6\u5feb\u3002<br>3.NumPy\u63d0\u4f9b\u6570\u636e\u7ed3\u6784\uff08\u6570\u7ec4\uff09\u6bd4Python\u5185\u7f6e\u6570\u636e\u7ed3\u6784\u8bbf\u95ee\u6548\u7387\u66f4\u9ad8\u3002<br>4.\u652f\u6301\u5927\u91cf\u9ad8\u7ef4\u5ea6\u6570\u7ec4\u4e0e\u77e9\u9635\u8fd0\u7b97\u3002<br>5.\u63d0\u4f9b\u5927\u91cf\u7684\u6570\u5b66\u51fd\u6570\u5e93\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u73af\u5883\u642d\u5efa<\/h1>\n\n\n\n<p>\u624b\u52a8\u5b89\u88c5\uff1a\u8981\u6c42python3.5\u53ca\u4ee5\u4e0a\u7248\u672c\u3002pip \u5b89\u88c5Numpy\u7b49\u5e93\u3002 pip install Numpy\u3002<br>\u5b89\u88c5IPython: \u662f\u4e00\u4e2a\u52a0\u5f3a\u7248\u7684Python\u89e3\u91ca\u5668\uff0cpython3.7\u4ee5\u540e\u5f00\u59cb\u81ea\u5e26\u5b89\u88c5\u3002<br>pip install ipython<\/p>\n\n\n\n<p>\u5b89\u88c5Anacoda: <br>Anaconda\u6307\u7684\u662f\u4e00\u4e2a\u5f00\u6e90\u7684Python\u53d1\u884c\u7248\u672c\uff0c\u5176\u5305\u542b\u4e86conda\u3001Python\u7b491500\u591a\u4e2a\u79d1\u5b66\u5305\u3002<br>\u5b98\u7f51\uff1ahttps:\/\/www.anaconda.com<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"849\" height=\"389\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-94.png\" alt=\"\" class=\"wp-image-4553\" style=\"aspect-ratio:2.1825192802056557;width:537px;height:auto\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-94.png 849w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-94-500x229.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-94-768x352.png 768w\" sizes=\"(max-width: 849px) 100vw, 849px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5f00\u53d1\u5de5\u5177\uff1a<\/h2>\n\n\n\n<p>Python Shell, Python IDEL, IPython shell, IDE\u5de5\u5177\uff08Pycharm\u3001Eclipse Pydev\u63d2\u4ef6\u3001Visual Studio Code\u3001Spyder\uff09\u3001Jupyter Notebook\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f16\u5199Numpy\u7a0b\u5e8f\uff1a<\/h2>\n\n\n\n<p>NumPy\u5e93\u4e2d\u6700\u91cd\u8981\u7684\u6570\u636e\u7ed3\u6784\u662f\u591a\u7ef4\u6570\u7ec4\u5bf9\u8c61\uff08ndarray\uff09,\u5b83\u662f\u4e00\u7cfb\u5217\u540c\u7c7b\u578b\u6570\u636e\u7684\u96c6\u5408\uff0c\u4e0b\u6807\u7d22\u5f15\u4ece0\u5f00\u59cb\u3002<br>ndarray\u5bf9\u8c61\u662f\u7528\u4e8e\u5b58\u653e\u540c\u7c7b\u578b\u5143\u7d20\u7684\u591a\u7ef4\u6570\u7ec4\u3002<br>ndarray\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5728\u5185\u5b58\u4e2d\u90fd\u6709\u76f8\u540c\u5b58\u50a8\u5927\u5c0f\u7684\u533a\u57df\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1453\" height=\"404\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-96.png\" alt=\"\" class=\"wp-image-4560\" style=\"aspect-ratio:3.5965346534653464;width:568px;height:auto\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-96.png 1453w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-96-1000x278.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-96-500x139.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-96-768x214.png 768w\" sizes=\"(max-width: 1453px) 100vw, 1453px\" \/><\/figure>\n\n\n\n<p>array\u51fd\u6570\u521b\u5efandarray\u5bf9\u8c61\uff0c\u5176\u4e2d\u53c2\u6570\u53ef\u4ee5\u662f\u5982\u4e0b\u7c7b\u578b\uff1aPython\u5217\u8868\uff08list\uff09\u3001Python\u5143\u7ec4\uff08tuple\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6307\u5b9a\u6570\u7ec4\u6570\u636e\u7c7b\u578b\uff1a<\/h3>\n\n\n\n<p>Numpy\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b\u6bd4Python\u5185\u7f6e\u7684\u6570\u636e\u7c7b\u578b\u8981\u591a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1424\" height=\"423\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-97.png\" alt=\"\" class=\"wp-image-4565\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-97.png 1424w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-97-1000x297.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-97-500x149.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-97-768x228.png 768w\" sizes=\"(max-width: 1424px) 100vw, 1424px\" \/><\/figure>\n\n\n\n<p>\u6570\u7ec4\u7684dtype\u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u7684\u7c7b\u578b\u3002\u4e5f\u53ef\u4ee5\u5728\u58f0\u660e\u65f6\u6307\u5b9a\u6570\u636e\u7c7b\u578b\u3002dtype=float\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u66f4\u591a\u6570\u636e\u7c7b\u578b\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1407\" height=\"886\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-98.png\" alt=\"\" class=\"wp-image-4568\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-98.png 1407w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-98-1000x630.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-98-500x315.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-98-768x484.png 768w\" sizes=\"(max-width: 1407px) 100vw, 1407px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1391\" height=\"660\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-99.png\" alt=\"\" class=\"wp-image-4569\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-99.png 1391w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-99-1000x474.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-99-500x237.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-99-768x364.png 768w\" sizes=\"(max-width: 1391px) 100vw, 1391px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c7b\u578b\u4ee3\u7801\u548c\u5b57\u8282\u5e8f<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1552\" height=\"537\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100.png\" alt=\"\" class=\"wp-image-4572\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100.png 1552w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100-1000x346.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100-500x173.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100-768x266.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-100-1536x531.png 1536w\" sizes=\"(max-width: 1552px) 100vw, 1552px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c7b\u578b\u8f6c\u6362<\/h3>\n\n\n\n<p>\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\uff08ndarray\uff09\u7684astype(dtype)\u65b9\u6cd5\u53ef\u4ee5\u8f6c\u6362\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1418\" height=\"788\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-101.png\" alt=\"\" class=\"wp-image-4573\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-101.png 1418w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-101-1000x556.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-101-500x278.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-101-768x427.png 768w\" sizes=\"(max-width: 1418px) 100vw, 1418px\" \/><\/figure>\n\n\n\n<p>\u6ce8\u610f\uff1aastype(dtype)\u65b9\u6cd5\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>3.3\u66f4\u591a\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<p>\u4f7f\u7528array()\u51fd\u6570\u662f\u5c06Python\u5185\u7f6e\u7684\u5217\u8868\u6216\u5143\u7d20\u8f6c\u6362\u4e3aNumpy\u6570\u7ec4\u5bf9\u8c61\uff0c\u8fd9\u6837\u505a\u6548\u7387\u4e0d\u9ad8\u3002\u4e3a\u6b64Numpy\u63d0\u4f9b\u4e86\u5f88\u591a\u521b\u5efa\u6570\u7ec4\u7684\u51fd\u6570\u3002arrange\u3001linspace(\u7ebf\u6027\u7b49\u5206\u5411\u91cf\uff09\u3001logspace(\u5bf9\u6570\u7b49\u5206\u5411\u91cf\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1546\" height=\"761\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102.png\" alt=\"\" class=\"wp-image-4577\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102.png 1546w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102-1000x492.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102-500x246.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102-768x378.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-102-1536x756.png 1536w\" sizes=\"(max-width: 1546px) 100vw, 1546px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1564\" height=\"732\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103.png\" alt=\"\" class=\"wp-image-4580\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103.png 1564w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103-1000x468.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103-500x234.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103-768x359.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-103-1536x719.png 1536w\" sizes=\"(max-width: 1564px) 100vw, 1564px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1393\" height=\"515\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-104.png\" alt=\"\" class=\"wp-image-4582\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-104.png 1393w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-104-1000x370.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-104-500x185.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-104-768x284.png 768w\" sizes=\"(max-width: 1393px) 100vw, 1393px\" \/><\/figure>\n\n\n\n<p>\u83b7\u53d6Numpy\u7248\u672c\uff1aprintf(np.__version__)<br>\u7f16\u5199Numpy\u7a0b\u5e8f\u4ee5\u83b7\u53d6\u6709\u5173np.add\u51fd\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\uff1a np.info(np.add) ; ipython\u63d0\u4f9b\u7684\u65b9\u5f0f\uff1anp.add? \u6216 np.add??<br>\u4ece\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u63d0\u53d6\u6240\u6709\u5947\u6570\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1341\" height=\"247\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-105.png\" alt=\"\" class=\"wp-image-4585\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-105.png 1341w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-105-1000x184.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-105-500x92.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-105-768x141.png 768w\" sizes=\"(max-width: 1341px) 100vw, 1341px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">\u7b2c\u56db\u7ae0 \u4e8c\u7ef4\u6570\u7ec4<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">4.1\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2090\" height=\"1482\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106.png\" alt=\"\" class=\"wp-image-4586\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106.png 2090w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106-1000x709.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106-500x355.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106-768x545.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106-1536x1089.png 1536w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-106-2048x1452.png 2048w\" sizes=\"(max-width: 2090px) 100vw, 2090px\" \/><\/figure>\n\n\n\n<p>4.2\u91cd\u8bbe\u6570\u7ec4\u7ef4\u5ea6\uff1areshape<\/p>\n\n\n\n<p>4.3.5\u4f7f\u7528identity\u548ceye\u51fd\u6570<\/p>\n\n\n\n<p>identity\u51fd\u6570\u53ef\u4ee5\u521b\u5efa\u5355\u4f4d\u77e9\u9635\uff0c\u5373\u5bf9\u89d2\u7ebf\u5143\u7d20\u4e3a1.0\uff0c\u5176\u4ed6\u5143\u7d20\u4e3a0.0.\u5176\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<br>numpy.identity(n,dtype=None);<\/p>\n\n\n\n<p>eye\u51fd\u6570\u53ef\u4ee5\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5bf9\u89d2\u7ebf\u5143\u7d20\u4e3a1.0\uff0c\u5176\u4ed6\u5143\u7d20\u4e3a0.0\u3002\u5176\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1449\" height=\"444\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-107.png\" alt=\"\" class=\"wp-image-4587\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-107.png 1449w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-107-1000x306.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-107-500x153.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-107-768x235.png 768w\" sizes=\"(max-width: 1449px) 100vw, 1449px\" \/><\/figure>\n\n\n\n<p>4.4\u6570\u7ec4\u7684\u5c5e\u6027<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1197\" height=\"518\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-108.png\" alt=\"\" class=\"wp-image-4588\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-108.png 1197w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-108-1000x433.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-108-500x216.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-108-768x332.png 768w\" sizes=\"(max-width: 1197px) 100vw, 1197px\" \/><\/figure>\n\n\n\n<p>4.6\u6570\u7ec4\u8f6c\u7f6e<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1542\" height=\"875\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109.png\" alt=\"\" class=\"wp-image-4590\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109.png 1542w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109-1000x567.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109-500x284.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109-768x436.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-109-1536x872.png 1536w\" sizes=\"(max-width: 1542px) 100vw, 1542px\" \/><\/figure>\n\n\n\n<p>5.1\u7d22\u5f15\u8bbf\u95ee<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1648\" height=\"760\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110.png\" alt=\"\" class=\"wp-image-4592\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110.png 1648w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110-1000x461.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110-500x231.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110-768x354.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-110-1536x708.png 1536w\" sizes=\"(max-width: 1648px) 100vw, 1648px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1685\" height=\"587\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111.png\" alt=\"\" class=\"wp-image-4593\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111.png 1685w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111-1000x348.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111-500x174.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111-768x268.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-111-1536x535.png 1536w\" sizes=\"(max-width: 1685px) 100vw, 1685px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1527\" height=\"684\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-112.png\" alt=\"\" class=\"wp-image-4594\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-112.png 1527w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-112-1000x448.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-112-500x224.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-112-768x344.png 768w\" sizes=\"(max-width: 1527px) 100vw, 1527px\" \/><\/figure>\n\n\n\n<p>5.2\u5207\u7247\u8bbf\u95ee<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1634\" height=\"767\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113.png\" alt=\"\" class=\"wp-image-4598\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113.png 1634w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113-1000x469.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113-500x235.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113-768x360.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-113-1536x721.png 1536w\" sizes=\"(max-width: 1634px) 100vw, 1634px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">6.3\u7b97\u672f\u8fd0\u7b97\uff1a<\/h2>\n\n\n\n<p>Numpy\u6570\u7ec4\u5bf9\u8c61\u53ef\u4ee5\u4f7f\u7528Python\u539f\u751f\u7684\u7b97\u672f\u8fd0\u7b97\u7b26\uff0c\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\u90fd\u53ef\u4ee5\u4f7f\u7528\u3002\u89c4\u5219\u5f88\u7b80\u5355\uff0c\u5373\u5bf9\u5bf9\u5e94\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u8fd0\u7b97\u5373\u53ef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"585\" height=\"209\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-114.png\" alt=\"\" class=\"wp-image-4602\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-114.png 585w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-114-500x179.png 500w\" sizes=\"(max-width: 585px) 100vw, 585px\" \/><\/figure>\n\n\n\n<p>\u5f62\u72b6\u76f8\u540c\u7684\u76f4\u63a5\u8ba1\u7b97\uff0c\u4e0d\u540c\u7684\u9700\u8981\u5e7f\u64ad\u5b9e\u73b0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6.4\u5e7f\u64ad<\/h2>\n\n\n\n<p>6.4.1\u6807\u9898\u5e7f\u64ad<\/p>\n\n\n\n<p>\u4efb\u4f55\u6807\u91cf\u90fd\u53ef\u4ee5\u8ddf\u6570\u7ec4\u8fdb\u884c\u8ba1\u7b97\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1320\" height=\"324\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-115.png\" alt=\"\" class=\"wp-image-4603\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-115.png 1320w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-115-1000x245.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-115-500x123.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-115-768x189.png 768w\" sizes=\"(max-width: 1320px) 100vw, 1320px\" \/><\/figure>\n\n\n\n<p>6.4.2\u6570\u7ec4\u5e7f\u64ad<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1260\" height=\"318\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-116.png\" alt=\"\" class=\"wp-image-4604\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-116.png 1260w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-116-1000x252.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-116-500x126.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-116-768x194.png 768w\" sizes=\"(max-width: 1260px) 100vw, 1260px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1003\" height=\"344\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-117.png\" alt=\"\" class=\"wp-image-4605\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-117.png 1003w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-117-1000x343.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-117-500x171.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-117-768x263.png 768w\" sizes=\"(max-width: 1003px) 100vw, 1003px\" \/><\/figure>\n\n\n\n<p>\u7ec3\u4e60\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"785\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-118.png\" alt=\"\" class=\"wp-image-4607\" style=\"aspect-ratio:1.6305732484076434;width:597px;height:auto\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-118.png 1280w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-118-1000x613.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-118-500x307.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-118-768x471.png 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c7\u7ae0 \u901a\u7528\u51fd\u6570<\/h2>\n\n\n\n<p>\u901a\u7528\u51fd\u6570\uff08ufunc\uff09\u4f7f\u5f97Numpy\u6570\u7ec4\u64cd\u4f5c\u7528\u4e8e\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u3002\u901a\u7528\u51fd\u6570\u662fC\u8bed\u8a00\u5b9e\u73b0\u7684\uff0c\u8fd9\u6837\u4f1a\u53d6\u5f97\u66f4\u5feb\u7684\u6267\u884c\u6548\u7387\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1002\" height=\"568\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-119.png\" alt=\"\" class=\"wp-image-4609\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-119.png 1002w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-119-1000x567.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-119-500x283.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-119-768x435.png 768w\" sizes=\"(max-width: 1002px) 100vw, 1002px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"991\" height=\"501\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-120.png\" alt=\"\" class=\"wp-image-4610\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-120.png 991w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-120-500x253.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-120-768x388.png 768w\" sizes=\"(max-width: 991px) 100vw, 991px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u81ea\u5b9a\u4e49\u901a\u7528\u51fd\u6570<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1479\" height=\"630\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-121.png\" alt=\"\" class=\"wp-image-4613\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-121.png 1479w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-121-1000x426.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-121-500x213.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-121-768x327.png 768w\" sizes=\"(max-width: 1479px) 100vw, 1479px\" \/><\/figure>\n\n\n\n<p>\u8f93\u5165\u4e00\u4e2a\u53c2\u6570\uff0c\u8f93\u51fa\u4e00\u4e2a\u53c2\u6570\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1259\" height=\"741\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-122.png\" alt=\"\" class=\"wp-image-4615\" style=\"aspect-ratio:1.699055330634278;width:720px;height:auto\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-122.png 1259w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-122-1000x589.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-122-500x294.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-122-768x452.png 768w\" sizes=\"(max-width: 1259px) 100vw, 1259px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">\u7b2c8\u7ae0 \u66f4\u591a\u51fd\u6570<\/h1>\n\n\n\n<p>8.1\u968f\u673a\u6570<\/p>\n\n\n\n<p>8.1.1\u5e38\u7528\u968f\u673a\u51fd\u6570<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1421\" height=\"258\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-123.png\" alt=\"\" class=\"wp-image-4618\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-123.png 1421w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-123-1000x182.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-123-500x91.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-123-768x139.png 768w\" sizes=\"(max-width: 1421px) 100vw, 1421px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1508\" height=\"909\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-124.png\" alt=\"\" class=\"wp-image-4619\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-124.png 1508w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-124-1000x603.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-124-500x301.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-124-768x463.png 768w\" sizes=\"(max-width: 1508px) 100vw, 1508px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">8.2\u6392\u5e8f<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1297\" height=\"507\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-125.png\" alt=\"\" class=\"wp-image-4620\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-125.png 1297w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-125-1000x391.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-125-500x195.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-125-768x300.png 768w\" sizes=\"(max-width: 1297px) 100vw, 1297px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1134\" height=\"794\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-126.png\" alt=\"\" class=\"wp-image-4621\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-126.png 1134w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-126-1000x700.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-126-500x350.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-126-768x538.png 768w\" sizes=\"(max-width: 1134px) 100vw, 1134px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"922\" height=\"325\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-127.png\" alt=\"\" class=\"wp-image-4622\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-127.png 922w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-127-500x176.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-127-768x271.png 768w\" sizes=\"(max-width: 922px) 100vw, 922px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1283\" height=\"441\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-128.png\" alt=\"\" class=\"wp-image-4623\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-128.png 1283w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-128-1000x344.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-128-500x172.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-128-768x264.png 768w\" sizes=\"(max-width: 1283px) 100vw, 1283px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1227\" height=\"877\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-129.png\" alt=\"\" class=\"wp-image-4625\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-129.png 1227w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-129-1000x715.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-129-500x357.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-129-768x549.png 768w\" sizes=\"(max-width: 1227px) 100vw, 1227px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">8.3\u805a\u5408\u51fd\u6570<\/h2>\n\n\n\n<p>\u53ef\u4ee5\u5bf9\u6574\u4e2a\u6570\u7ec4\u5143\u7d20\u6216\u8f74\u5143\u7d20\u8fdb\u884c\u8ba1\u7b97\uff0c\u83b7\u5f97\u5355\u4e00\u503c\uff0c\u8fd9\u662f\u805a\u5408\u51fd\u6570\u3002\u5982\uff1asum\u3001amin\u3001amax\u3001mean\uff08\u5e73\u5747\u503c\uff09\u3001average\uff08\u52a0\u6743\u5e73\u5747\u503c\uff09\u3001var\uff08\u65b9\u5dee\uff09\u3001std\uff08\u6807\u51c6\u504f\u5dee\uff09\u7b49\u3002<\/p>\n\n\n\n<p>8.3.1\u6c42\u548c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1355\" height=\"486\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-130.png\" alt=\"\" class=\"wp-image-4629\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-130.png 1355w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-130-1000x359.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-130-500x179.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-130-768x275.png 768w\" sizes=\"(max-width: 1355px) 100vw, 1355px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1279\" height=\"243\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-131.png\" alt=\"\" class=\"wp-image-4631\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-131.png 1279w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-131-1000x190.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-131-500x95.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-131-768x146.png 768w\" sizes=\"(max-width: 1279px) 100vw, 1279px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1170\" height=\"898\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-132.png\" alt=\"\" class=\"wp-image-4633\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-132.png 1170w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-132-1000x768.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-132-500x384.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-132-768x589.png 768w\" sizes=\"(max-width: 1170px) 100vw, 1170px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1355\" height=\"929\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-133.png\" alt=\"\" class=\"wp-image-4635\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-133.png 1355w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-133-1000x686.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-133-500x343.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-133-768x527.png 768w\" sizes=\"(max-width: 1355px) 100vw, 1355px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1291\" height=\"774\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-134.png\" alt=\"\" class=\"wp-image-4636\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-134.png 1291w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-134-1000x600.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-134-500x300.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-134-768x460.png 768w\" sizes=\"(max-width: 1291px) 100vw, 1291px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1347\" height=\"936\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-135.png\" alt=\"\" class=\"wp-image-4637\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-135.png 1347w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-135-1000x695.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-135-500x347.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-135-768x534.png 768w\" sizes=\"(max-width: 1347px) 100vw, 1347px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1352\" height=\"888\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-136.png\" alt=\"\" class=\"wp-image-4639\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-136.png 1352w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-136-1000x657.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-136-500x328.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-136-768x504.png 768w\" sizes=\"(max-width: 1352px) 100vw, 1352px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1303\" height=\"956\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-137.png\" alt=\"\" class=\"wp-image-4641\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-137.png 1303w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-137-1000x734.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-137-500x367.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-137-768x563.png 768w\" sizes=\"(max-width: 1303px) 100vw, 1303px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1343\" height=\"539\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-138.png\" alt=\"\" class=\"wp-image-4642\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-138.png 1343w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-138-1000x401.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-138-500x201.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-138-768x308.png 768w\" sizes=\"(max-width: 1343px) 100vw, 1343px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1240\" height=\"437\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-139.png\" alt=\"\" class=\"wp-image-4643\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-139.png 1240w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-139-1000x352.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-139-500x176.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-139-768x271.png 768w\" sizes=\"(max-width: 1240px) 100vw, 1240px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1265\" height=\"497\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-140.png\" alt=\"\" class=\"wp-image-4644\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-140.png 1265w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-140-1000x393.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-140-500x196.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-140-768x302.png 768w\" sizes=\"(max-width: 1265px) 100vw, 1265px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1267\" height=\"566\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-141.png\" alt=\"\" class=\"wp-image-4645\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-141.png 1267w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-141-1000x447.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-141-500x223.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-141-768x343.png 768w\" sizes=\"(max-width: 1267px) 100vw, 1267px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e5d\u7ae0 \u7ebf\u6027\u4ee3\u6570<\/h2>\n\n\n\n<p>Numpy\u63d0\u4f9b\u7ebf\u6027\u4ee3\u6570\u8ba1\u7b97\u6a21\u5757numpy.linalg\uff0c\u8be5\u6a21\u5757\u5305\u542b\u4e86\u7ebf\u6027\u4ee3\u6570\u6240\u9700\u7684\u6240\u6709\u529f\u80fd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1227\" height=\"838\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-142.png\" alt=\"\" class=\"wp-image-4647\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-142.png 1227w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-142-1000x683.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-142-500x341.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-142-768x525.png 768w\" sizes=\"(max-width: 1227px) 100vw, 1227px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1299\" height=\"652\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-143.png\" alt=\"\" class=\"wp-image-4649\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-143.png 1299w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-143-1000x502.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-143-500x251.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-143-768x385.png 768w\" sizes=\"(max-width: 1299px) 100vw, 1299px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1340\" height=\"525\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-144.png\" alt=\"\" class=\"wp-image-4650\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-144.png 1340w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-144-1000x392.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-144-500x196.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-144-768x301.png 768w\" sizes=\"(max-width: 1340px) 100vw, 1340px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1403\" height=\"482\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-145.png\" alt=\"\" class=\"wp-image-4651\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-145.png 1403w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-145-1000x344.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-145-500x172.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-145-768x264.png 768w\" sizes=\"(max-width: 1403px) 100vw, 1403px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1333\" height=\"154\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-146.png\" alt=\"\" class=\"wp-image-4652\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-146.png 1333w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-146-1000x116.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-146-500x58.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2024\/05\/image-146-768x89.png 768w\" sizes=\"(max-width: 1333px) 100vw, 1333px\" \/><\/figure>\n\n\n\n<p>\u7b2c10\u7ae0 \u9ad8\u7ef4\u6570\u7ec4<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><br><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.bilibili.com\/video\/BV1BA41197ZU?p=36&amp;sp [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-4540","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/4540"}],"collection":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4540"}],"version-history":[{"count":31,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/4540\/revisions"}],"predecessor-version":[{"id":4662,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/4540\/revisions\/4662"}],"wp:attachment":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}