{"id":928075,"date":"2024-12-26T16:27:25","date_gmt":"2024-12-26T08:27:25","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/928075.html"},"modified":"2024-12-26T16:27:27","modified_gmt":"2024-12-26T08:27:27","slug":"python-cmath%e7%b2%be%e5%ba%a6%e5%a6%82%e4%bd%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/928075.html","title":{"rendered":"python cmath\u7cbe\u5ea6\u5982\u4f55"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25063922\/8e12a287-57f1-434f-b2f7-36d3d46dc8d7.webp\" alt=\"python cmath\u7cbe\u5ea6\u5982\u4f55\" \/><\/p>\n<p><p> <strong>Python\u7684cmath\u6a21\u5757\u4e3b\u8981\u7528\u4e8e\u6267\u884c\u590d\u6570\u6570\u5b66\u8fd0\u7b97\uff0c\u5176\u7cbe\u5ea6\u4e3b\u8981\u53d6\u51b3\u4e8e\u5e95\u5c42\u7684\u6d6e\u70b9\u6570\u7cbe\u5ea6\u3002Python\u4e2d\u7684\u590d\u6570\u548c\u6d6e\u70b9\u6570\u90fd\u662f\u57fa\u4e8eC\u8bed\u8a00\u7684double\u7c7b\u578b\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u901a\u5e38\u5177\u6709\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u7684\u7cbe\u5ea6\uff08\u5927\u7ea615-17\u4f4d\u6709\u6548\u6570\u5b57\uff09\u3002\u5177\u4f53\u6765\u8bf4\uff0ccmath\u6a21\u5757\u80fd\u591f\u5904\u7406\u590d\u6570\u7684\u57fa\u672c\u8fd0\u7b97\u3001\u590d\u6570\u7684\u6307\u6570\u548c\u5bf9\u6570\u8fd0\u7b97\u3001\u4ee5\u53ca\u4e09\u89d2\u51fd\u6570\u548c\u53cc\u66f2\u51fd\u6570\u3002<\/strong>\u4e0b\u9762\u5c06\u8be6\u7ec6\u8ba8\u8bbacmath\u6a21\u5757\u7684\u7cbe\u5ea6\u95ee\u9898\u53ca\u5176\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e2d\u7684\u8868\u73b0\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001PYTHON CMATH\u6a21\u5757\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n<\/p>\n<p><p>Python\u7684cmath\u6a21\u5757\u662f\u4e13\u4e3a\u590d\u6570\u8fd0\u7b97\u8bbe\u8ba1\u7684\u3002\u590d\u6570\u5728\u6570\u5b66\u4e2d\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u7531\u4e00\u4e2a\u5b9e\u6570\u90e8\u5206\u548c\u4e00\u4e2a\u865a\u6570\u90e8\u5206\u7ec4\u6210\uff0c\u901a\u5e38\u8868\u793a\u4e3aa + bj\uff0c\u5176\u4e2da\u548cb\u90fd\u662f\u6d6e\u70b9\u6570\uff0c\u800cj\u662f\u865a\u6570\u5355\u4f4d\uff08j^2 = -1\uff09\u3002\u4f7f\u7528cmath\u6a21\u5757\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u6267\u884c\u590d\u6570\u7684\u5404\u79cd\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u6d6e\u70b9\u6570\u7cbe\u5ea6<\/strong><\/li>\n<\/ol>\n<p><p>Python\u4e2d\u7684\u6d6e\u70b9\u6570\u662f\u57fa\u4e8eIEEE 754\u6807\u51c6\u7684\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3002\u8fd9\u610f\u5473\u7740Python\u4e2d\u7684\u6d6e\u70b9\u6570\u4e00\u822c\u5177\u670953\u4f4d\u7684\u7cbe\u5ea6\uff0c\u5927\u7ea6\u7b49\u4e8e15-17\u4f4d\u5341\u8fdb\u5236\u6570\u5b57\u3002\u8fd9\u79cd\u7cbe\u5ea6\u9002\u7528\u4e8e\u5927\u591a\u6570\u79d1\u5b66\u8ba1\u7b97\u548c\u5de5\u7a0b\u8ba1\u7b97\uff0c\u4f46\u5728\u67d0\u4e9b\u9700\u8981\u6781\u9ad8\u7cbe\u5ea6\u7684\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u663e\u5f97\u4e0d\u8db3\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u590d\u6570\u8fd0\u7b97\u7684\u5b9e\u73b0<\/strong><\/li>\n<\/ol>\n<p><p>cmath\u6a21\u5757\u63d0\u4f9b\u4e86\u591a\u79cd\u590d\u6570\u8fd0\u7b97\u7684\u5b9e\u73b0\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\u3001\u6307\u6570\u8fd0\u7b97\u3001\u5bf9\u6570\u8fd0\u7b97\u3001\u4ee5\u53ca\u5404\u79cd\u4e09\u89d2\u548c\u53cc\u66f2\u51fd\u6570\u3002\u8fd9\u4e9b\u8fd0\u7b97\u7684\u7cbe\u5ea6\u53d6\u51b3\u4e8ePython\u6d6e\u70b9\u6570\u7684\u7cbe\u5ea6\uff0c\u56e0\u6b64\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e9b\u8fd0\u7b97\u5177\u6709\u4e0e\u6d6e\u70b9\u6570\u8fd0\u7b97\u76f8\u4f3c\u7684\u7cbe\u5ea6\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001CMATH\u6a21\u5757\u7684\u529f\u80fd\u4e0e\u7cbe\u5ea6<\/p>\n<\/p>\n<p><p>cmath\u6a21\u5757\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u4e8e\u590d\u6570\u7684\u57fa\u672c\u8fd0\u7b97\u3001\u590d\u6570\u7684\u6307\u6570\u548c\u5bf9\u6570\u8fd0\u7b97\u3001\u4ee5\u53ca\u590d\u6570\u7684\u4e09\u89d2\u548c\u53cc\u66f2\u51fd\u6570\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u529f\u80fd\uff0c\u5e76\u8ba8\u8bba\u5176\u7cbe\u5ea6\u8868\u73b0\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u57fa\u672c\u8fd0\u7b97<\/strong><\/li>\n<\/ol>\n<p><p>\u5728cmath\u6a21\u5757\u4e2d\uff0c\u590d\u6570\u7684\u57fa\u672c\u8fd0\u7b97\u5305\u62ec\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u3002\u8fd9\u4e9b\u8fd0\u7b97\u7684\u7cbe\u5ea6\u4e0ePython\u6d6e\u70b9\u6570\u7684\u7cbe\u5ea6\u4e00\u81f4\uff0c\u56e0\u6b64\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u53ef\u4ee5\u63d0\u4f9b\u8db3\u591f\u7684\u7cbe\u5ea6\u3002\u4f46\u5728\u8fd0\u7b97\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u56e0\u820d\u5165\u8bef\u5dee\u800c\u5bfc\u81f4\u7684\u5fae\u5c0f\u4e0d\u51c6\u786e\u3002\u4f8b\u5982\uff0c\u5728\u8fdb\u884c\u5927\u91cf\u4e58\u6cd5\u6216\u9664\u6cd5\u8fd0\u7b97\u65f6\uff0c\u7d2f\u79ef\u8bef\u5dee\u53ef\u80fd\u4f1a\u53d8\u5f97\u663e\u8457\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u6307\u6570\u548c\u5bf9\u6570\u8fd0\u7b97<\/strong><\/li>\n<\/ol>\n<p><p>cmath\u6a21\u5757\u63d0\u4f9b\u4e86\u590d\u6570\u7684\u6307\u6570\u548c\u5bf9\u6570\u8fd0\u7b97\u3002\u6307\u6570\u8fd0\u7b97\uff08\u5982cmath.exp\uff09\u548c\u5bf9\u6570\u8fd0\u7b97\uff08\u5982cmath.log\uff09\u5728\u590d\u6570\u57df\u4e2d\u5177\u6709\u7279\u5b9a\u7684\u5b9a\u4e49\uff0c\u5e76\u4e14\u5176\u5b9e\u73b0\u8003\u8651\u4e86\u590d\u6570\u7684\u6a21\u548c\u8f90\u89d2\u3002\u7531\u4e8e\u6307\u6570\u548c\u5bf9\u6570\u8fd0\u7b97\u6d89\u53ca\u5230\u8d85\u8d8a\u51fd\u6570\uff0c\u5176\u7ed3\u679c\u7684\u7cbe\u5ea6\u4ecd\u7136\u53d7\u5230\u6d6e\u70b9\u6570\u7cbe\u5ea6\u7684\u9650\u5236\u3002<\/p>\n<\/p>\n<ol start=\"3\">\n<li><strong>\u4e09\u89d2\u548c\u53cc\u66f2\u51fd\u6570<\/strong><\/li>\n<\/ol>\n<p><p>cmath\u6a21\u5757\u8fd8\u63d0\u4f9b\u4e86\u590d\u6570\u7684\u4e09\u89d2\u51fd\u6570\uff08\u5982cmath.sin\uff0ccmath.cos\uff09\u548c\u53cc\u66f2\u51fd\u6570\uff08\u5982cmath.sinh\uff0ccmath.cosh\uff09\u3002\u8fd9\u4e9b\u51fd\u6570\u5728\u590d\u6570\u57df\u4e2d\u7684\u5b9e\u73b0\u901a\u5e38\u6d89\u53ca\u5230\u590d\u6570\u7684\u5b9e\u6570\u90e8\u5206\u548c\u865a\u6570\u90e8\u5206\u7684\u5206\u89e3\uff0c\u56e0\u6b64\u5176\u7cbe\u5ea6\u4e5f\u53d7\u5230\u6d6e\u70b9\u6570\u7cbe\u5ea6\u7684\u5f71\u54cd\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001CMATH\u6a21\u5757\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e2d\u7684\u8868\u73b0<\/p>\n<\/p>\n<ol>\n<li><strong>\u79d1\u5b66\u8ba1\u7b97<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u79d1\u5b66\u8ba1\u7b97\u4e2d\uff0c\u590d\u6570\u8fd0\u7b97\u662f\u975e\u5e38\u5e38\u89c1\u7684\uff0c\u5c24\u5176\u662f\u5728\u7535\u8def\u5206\u6790\u3001\u4fe1\u53f7\u5904\u7406\u548c\u91cf\u5b50\u529b\u5b66\u7b49\u9886\u57df\u3002\u7531\u4e8ecmath\u6a21\u5757\u80fd\u591f\u5904\u7406\u590d\u6742\u7684\u590d\u6570\u8fd0\u7b97\uff0c\u56e0\u6b64\u5728\u8fd9\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u4f7f\u7528cmath\u6a21\u5757\u53ef\u4ee5\u5927\u5927\u7b80\u5316\u8ba1\u7b97\u8fc7\u7a0b\u3002\u7136\u800c\uff0c\u5728\u5904\u7406\u6781\u5c0f\u6216\u6781\u5927\u7684\u6570\u503c\u65f6\uff0c\u7528\u6237\u9700\u8981\u6ce8\u610f\u53ef\u80fd\u7684\u7cbe\u5ea6\u635f\u5931\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5de5\u7a0b\u5e94\u7528<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u5de5\u7a0b\u5e94\u7528\u4e2d\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u5230\u7535\u78c1\u573a\u3001\u6ce2\u52a8\u548c\u632f\u52a8\u7684\u5206\u6790\u65f6\uff0c\u590d\u6570\u8fd0\u7b97\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002cmath\u6a21\u5757\u7684\u9ad8\u6548\u6027\u548c\u7cbe\u5ea6\u80fd\u591f\u6ee1\u8db3\u5927\u591a\u6570\u5de5\u7a0b\u5e94\u7528\u7684\u9700\u6c42\u3002\u7136\u800c\uff0c\u5728\u6781\u7aef\u6761\u4ef6\u4e0b\uff0c\u4f8b\u5982\u975e\u5e38\u9ad8\u9891\u7684\u4fe1\u53f7\u5206\u6790\u6216\u975e\u5e38\u5c0f\u7684\u7535\u6d41\u6d4b\u91cf\uff0c\u7528\u6237\u53ef\u80fd\u9700\u8981\u8003\u8651\u4f7f\u7528\u9ad8\u7cbe\u5ea6\u7684\u6570\u503c\u5e93\uff08\u5982mpmath\uff09\u6765\u786e\u4fdd\u8ba1\u7b97\u7ed3\u679c\u7684\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n<ol start=\"3\">\n<li><strong>\u8ba1\u7b97\u673a\u56fe\u5f62\u5b66<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u8ba1\u7b97\u673a\u56fe\u5f62\u5b66\u4e2d\uff0c\u590d\u6570\u8fd0\u7b97\u7528\u4e8e\u56fe\u50cf\u5904\u7406\u548c\u6a21\u62df\u7269\u7406\u8fc7\u7a0b\u3002\u5c3d\u7ba1cmath\u6a21\u5757\u63d0\u4f9b\u4e86\u8db3\u591f\u7684\u7cbe\u5ea6\u6765\u5904\u7406\u5927\u591a\u6570\u56fe\u5f62\u5b66\u95ee\u9898\uff0c\u4f46\u5728\u5904\u7406\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u6216\u975e\u5e38\u590d\u6742\u7684\u6a21\u578b\u65f6\uff0c\u7528\u6237\u9700\u8981\u7279\u522b\u6ce8\u610f\u7531\u4e8e\u820d\u5165\u8bef\u5dee\u5bfc\u81f4\u7684\u6f5c\u5728\u7cbe\u5ea6\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u63d0\u9ad8CMATH\u6a21\u5757\u8ba1\u7b97\u7cbe\u5ea6\u7684\u65b9\u6cd5<\/p>\n<\/p>\n<ol>\n<li><strong>\u4f7f\u7528\u9ad8\u7cbe\u5ea6\u6570\u503c\u5e93<\/strong><\/li>\n<\/ol>\n<p><p>\u5f53cmath\u6a21\u5757\u7684\u7cbe\u5ea6\u4e0d\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u9ad8\u7cbe\u5ea6\u6570\u503c\u5e93\uff0c\u5982mpmath\u6216decimal\u3002\u8fd9\u4e9b\u5e93\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7cbe\u5ea6\u7684\u6d6e\u70b9\u6570\u8fd0\u7b97\uff0c\u53ef\u4ee5\u6781\u5927\u5730\u51cf\u5c11\u820d\u5165\u8bef\u5dee\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u6570\u503c\u7a33\u5b9a\u6027\u5206\u6790<\/strong><\/li>\n<\/ol>\n<p><p>\u5728\u8fdb\u884c\u590d\u6742\u7684\u590d\u6570\u8fd0\u7b97\u65f6\uff0c\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u5206\u6790\u7b97\u6cd5\u7684\u6570\u503c\u7a33\u5b9a\u6027\u6765\u51cf\u5c11\u8bef\u5dee\u3002\u9009\u62e9\u6570\u503c\u7a33\u5b9a\u6027\u66f4\u597d\u7684\u7b97\u6cd5\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u820d\u5165\u8bef\u5dee\u3002<\/p>\n<\/p>\n<ol 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