{"id":1089289,"date":"2025-01-08T13:52:15","date_gmt":"2025-01-08T05:52:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1089289.html"},"modified":"2025-01-08T13:52:17","modified_gmt":"2025-01-08T05:52:17","slug":"python%e4%b8%ade%e7%9a%84%e5%87%a0%e6%ac%a1%e6%96%b9%e5%a6%82%e4%bd%95%e8%a1%a8%e7%a4%ba-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1089289.html","title":{"rendered":"python\u4e2de\u7684\u51e0\u6b21\u65b9\u5982\u4f55\u8868\u793a"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24202304\/076dd878-5b6c-45ba-a842-d24f5a942818.webp\" alt=\"python\u4e2de\u7684\u51e0\u6b21\u65b9\u5982\u4f55\u8868\u793a\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u8868\u793ae\u7684\u51e0\u6b21\u65b9\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u6570\u5b66\u5e93math\u4e2d\u7684exp\u51fd\u6570\u3001\u4f7f\u7528numpy\u5e93\u4e2d\u7684exp\u51fd\u6570\u4ee5\u53ca\u4f7f\u7528\u7b26\u53f7\u8ba1\u7b97\u5e93sympy\u7b49\u65b9\u6cd5\u3002\u63a8\u8350\u7684\u65b9\u6cd5\u662f\u4f7f\u7528math.exp\u51fd\u6570\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4f8b\u5982\uff0c\u8981\u8ba1\u7b97e\u7684n\u6b21\u65b9\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import math<\/p>\n<p>result = math.exp(n)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u51e0\u79cd\u8868\u793ae\u7684\u51e0\u6b21\u65b9\u7684\u65b9\u6cd5\u548c\u5b83\u4eec\u7684\u4f7f\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<hr>\n<h2><strong>\u4e00\u3001\u4f7f\u7528math\u5e93<\/strong><\/h2>\n<p><p>Python\u5185\u7f6e\u7684math\u5e93\u5305\u542b\u4e86\u8bb8\u591a\u5e38\u7528\u7684\u6570\u5b66\u51fd\u6570\uff0c\u5176\u4e2d\u5305\u62ecexp\u51fd\u6570\uff0c\u7528\u4e8e\u8ba1\u7b97e\u7684\u5e42\u6b21\u3002math.exp\u51fd\u6570\u662f\u6700\u5e38\u7528\u548c\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u56e0\u4e3a\u5b83\u662f\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u4e0d\u9700\u8981\u989d\u5916\u5b89\u88c5\u3002<\/p>\n<\/p>\n<p><h2>1.1 \u4f7f\u7528math.exp\u51fd\u6570<\/h2>\n<\/p>\n<p><p>math.exp\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u53c2\u6570\uff0c\u5373\u4f60\u60f3\u8981\u8ba1\u7b97\u7684\u5e42\u6307\u6570\uff0c\u7136\u540e\u8fd4\u56dee\u7684\u8be5\u6b21\u5e42\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import math<\/p>\n<h2><strong>\u8ba1\u7b97e\u76842\u6b21\u65b9<\/strong><\/h2>\n<p>result = math.exp(2)<\/p>\n<p>print(result)  # \u8f93\u51fa: 7.38905609893065<\/p>\n<h2><strong>\u8ba1\u7b97e\u7684-1\u6b21\u65b9<\/strong><\/h2>\n<p>result = math.exp(-1)<\/p>\n<p>print(result)  # \u8f93\u51fa: 0.36787944117144233<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165\u4e86math\u5e93\u5e76\u4f7f\u7528math.exp\u51fd\u6570\u6765\u8ba1\u7b97e\u76842\u6b21\u65b9\u548ce\u7684-1\u6b21\u65b9\u3002\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u7b80\u6d01\u660e\u4e86\uff0c\u5e76\u4e14\u6548\u7387\u5f88\u9ad8\u3002<\/p>\n<\/p>\n<p><h2>1.2 \u4f7f\u7528math\u5e93\u7684\u4f18\u52bf<\/h2>\n<\/p>\n<p><p><strong>\u4f7f\u7528math\u5e93\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u9ad8\u6548\u3001\u6613\u7528\uff0c\u5e76\u4e14\u4f5c\u4e3aPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u4e0d\u9700\u8981\u989d\u5916\u5b89\u88c5\u4efb\u4f55\u5305\u3002<\/strong> \u53e6\u5916\uff0cmath\u5e93\u7684\u5b9e\u73b0\u975e\u5e38\u9ad8\u6548\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u6570\u503c\u8ba1\u7b97\u573a\u666f\u3002<\/p>\n<\/p>\n<hr>\n<h2><strong>\u4e8c\u3001\u4f7f\u7528numpy\u5e93<\/strong><\/h2>\n<p><p>\u5982\u679c\u4f60\u7684\u9879\u76ee\u4e2d\u5df2\u7ecf\u5728\u4f7f\u7528numpy\u5e93\uff0c\u6216\u8005\u4f60\u9700\u8981\u5904\u7406\u5927\u91cf\u7684\u6570\u503c\u8ba1\u7b97\uff0cnumpy\u7684exp\u51fd\u6570\u4e5f\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\u3002numpy\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u503c\u8ba1\u7b97\u5e93\uff0c\u7279\u522b\u9002\u5408\u5904\u7406\u5927\u89c4\u6a21\u6570\u7ec4\u548c\u77e9\u9635\u8fd0\u7b97\u3002<\/p>\n<\/p>\n<p><h2>2.1 \u4f7f\u7528numpy.exp\u51fd\u6570<\/h2>\n<\/p>\n<p><p>numpy.exp\u51fd\u6570\u7c7b\u4f3c\u4e8emath.exp\uff0c\u4f46\u5b83\u80fd\u591f\u76f4\u63a5\u5bf9\u6570\u7ec4\u8fdb\u884c\u64cd\u4f5c\uff0c\u8fd9\u5bf9\u4e8e\u6279\u91cf\u8ba1\u7b97\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<h2><strong>\u8ba1\u7b97e\u76842\u6b21\u65b9<\/strong><\/h2>\n<p>result = np.exp(2)<\/p>\n<p>print(result)  # \u8f93\u51fa: 7.38905609893065<\/p>\n<h2><strong>\u8ba1\u7b97\u591a\u4e2a\u503c\u7684e\u7684\u5e42\u6b21<\/strong><\/h2>\n<p>values = np.array([1, 2, 3])<\/p>\n<p>result = np.exp(values)<\/p>\n<p>print(result)  # \u8f93\u51fa: [ 2.71828183  7.3890561  20.08553692]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528numpy.exp\u51fd\u6570\u6765\u8ba1\u7b97e\u76842\u6b21\u65b9\uff0c\u4ee5\u53ca\u4e00\u4e2a\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684e\u7684\u5e42\u6b21\u3002numpy\u7684\u4f18\u52bf\u5728\u4e8e\u80fd\u591f\u9ad8\u6548\u5730\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u503c\u8ba1\u7b97\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><h2>2.2 \u4f7f\u7528numpy\u5e93\u7684\u4f18\u52bf<\/h2>\n<\/p>\n<p><p><strong>\u4f7f\u7528numpy\u5e93\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u5f3a\u5927\u7684\u6570\u7ec4\u5904\u7406\u80fd\u529b\u548c\u4e30\u5bcc\u7684\u6570\u503c\u8ba1\u7b97\u529f\u80fd\u3002<\/strong> \u5bf9\u4e8e\u9700\u8981\u8fdb\u884c\u5927\u91cf\u6570\u636e\u5904\u7406\u548c\u79d1\u5b66\u8ba1\u7b97\u7684\u9879\u76ee\uff0cnumpy\u662f\u4e00\u4e2a\u975e\u5e38\u5408\u9002\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n<hr>\n<h2><strong>\u4e09\u3001\u4f7f\u7528sympy\u5e93<\/strong><\/h2>\n<p><p>\u5bf9\u4e8e\u7b26\u53f7\u8ba1\u7b97\u548c\u7cbe\u786e\u6570\u5b66\u8ba1\u7b97\uff0csympy\u5e93\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\u3002sympy\u5141\u8bb8\u8fdb\u884c\u7b26\u53f7\u8fd0\u7b97\uff0c\u5e76\u4e14\u53ef\u4ee5\u7cbe\u786e\u8868\u793a\u6570\u5b66\u8868\u8fbe\u5f0f\uff0c\u800c\u4e0d\u4f1a\u4e22\u5931\u7cbe\u5ea6\u3002<\/p>\n<\/p>\n<p><h2>3.1 \u4f7f\u7528sympy.exp\u51fd\u6570<\/h2>\n<\/p>\n<p><p>sympy\u7684exp\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u7b26\u53f7\u8fd0\u7b97\u548c\u7cbe\u786e\u8ba1\u7b97\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u8fdb\u884c\u7b26\u53f7\u5904\u7406\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sympy as sp<\/p>\n<h2><strong>\u8ba1\u7b97e\u76842\u6b21\u65b9<\/strong><\/h2>\n<p>x = sp.symbols(&#39;x&#39;)<\/p>\n<p>result = sp.exp(2)<\/p>\n<p>print(result)  # \u8f93\u51fa: exp(2)<\/p>\n<h2><strong>\u8ba1\u7b97\u7b26\u53f7\u8868\u8fbe\u5f0f\u7684e\u7684\u5e42\u6b21<\/strong><\/h2>\n<p>expr = x + 1<\/p>\n<p>result = sp.exp(expr)<\/p>\n<p>print(result)  # \u8f93\u51fa: exp(x + 1)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528sympy.exp\u51fd\u6570\u6765\u8ba1\u7b97e\u76842\u6b21\u65b9\uff0c\u5e76\u4e14\u8ba1\u7b97\u4e86\u7b26\u53f7\u8868\u8fbe\u5f0f\u7684e\u7684\u5e42\u6b21\u3002sympy\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7b26\u53f7\u8fd0\u7b97\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u8868\u793a\u6570\u5b66\u8868\u8fbe\u5f0f\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><h2>3.2 \u4f7f\u7528sympy\u5e93\u7684\u4f18\u52bf<\/h2>\n<\/p>\n<p><p><strong>\u4f7f\u7528sympy\u5e93\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u7b26\u53f7\u8ba1\u7b97\u80fd\u529b\u548c\u7cbe\u786e\u5ea6\u3002<\/strong> \u5bf9\u4e8e\u9700\u8981\u8fdb\u884c\u7b26\u53f7\u8fd0\u7b97\u3001\u4ee3\u6570\u8ba1\u7b97\u548c\u5fae\u79ef\u5206\u7684\u9879\u76ee\uff0csympy\u662f\u4e00\u4e2a\u975e\u5e38\u9002\u5408\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n<hr>\n<h2><strong>\u56db\u3001\u603b\u7ed3<\/strong><\/h2>\n<p><p>\u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8868\u793ae\u7684\u51e0\u6b21\u65b9\uff0c\u5305\u62ec\u4f7f\u7528math\u5e93\u3001numpy\u5e93\u548csympy\u5e93\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>math\u5e93\uff1a<\/strong> \u9ad8\u6548\u3001\u6613\u7528\uff0c\u9002\u7528\u4e8e\u4e00\u822c\u7684\u6570\u503c\u8ba1\u7b97\u573a\u666f\u3002<\/li>\n<li><strong>numpy\u5e93\uff1a<\/strong> \u5f3a\u5927\u7684\u6570\u7ec4\u5904\u7406\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\u548c\u79d1\u5b66\u8ba1\u7b97\u3002<\/li>\n<li><strong>sympy\u5e93\uff1a<\/strong> \u7b26\u53f7\u8ba1\u7b97\u80fd\u529b\uff0c\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u8868\u793a\u6570\u5b66\u8868\u8fbe\u5f0f\u7684\u573a\u666f\u3002<\/li>\n<\/ol>\n<p><p>\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u9879\u76ee\u7279\u70b9\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u8ba1\u7b97e\u7684\u51e0\u6b21\u65b9\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8ba1\u7b97e\u7684\u5e42\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>math<\/code>\u6a21\u5757\u4e2d\u7684<code>exp()<\/code>\u51fd\u6570\u6765\u8ba1\u7b97e\u7684\u5e42\u3002\u901a\u8fc7\u8c03\u7528<code>math.exp(x)<\/code>\uff0c\u4f60\u53ef\u4ee5\u5f97\u5230e\u7684x\u6b21\u65b9\u7684\u503c\u3002\u4f8b\u5982\uff0c<code>math.exp(2)<\/code>\u5c06\u8fd4\u56dee\u7684\u5e73\u65b9\u3002<\/p>\n<p><strong>\u4f7f\u7528numpy\u5e93\u8ba1\u7b97e\u7684\u5e42\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/strong><br \/>\u5982\u679c\u4f60\u9700\u8981\u5bf9\u5927\u91cf\u6570\u636e\u8fdb\u884c\u79d1\u5b66\u8ba1\u7b97\uff0c\u4f7f\u7528<code>numpy<\/code>\u5e93\u7684<code>exp()<\/code>\u51fd\u6570\u4f1a\u66f4\u9ad8\u6548\u3002<code>numpy.exp(x)<\/code>\u53ef\u4ee5\u63a5\u53d7\u6570\u7ec4\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u5bf9\u6bcf\u4e2a\u5143\u7d20\u8ba1\u7b97e\u7684\u5e42\uff0c\u8fd9\u6837\u53ef\u4ee5\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u63d0\u5347\u6027\u80fd\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u8868\u793ae\u7684\u5e38\u6570\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7<code>math.e<\/code>\u6765\u5f15\u7528\u81ea\u7136\u5e38\u6570e\u7684\u503c\u3002\u8fd9\u4f7f\u5f97\u5728\u9700\u8981\u8fdb\u884c\u6570\u5b66\u8ba1\u7b97\u65f6\uff0c\u80fd\u591f\u76f4\u63a5\u4f7f\u7528\u8fd9\u4e2a\u5e38\u6570\uff0c\u800c\u65e0\u9700\u624b\u52a8\u8f93\u5165\u5176\u8fd1\u4f3c\u503c\u3002\u4f8b\u5982\uff0c<code>math.e<\/code>\u7684\u503c\u7ea6\u4e3a2.71828\uff0c\u53ef\u4ee5\u5728\u8ba1\u7b97\u65f6\u76f4\u63a5\u4f7f\u7528\u3002<\/p>\n<p><strong>\u5982\u4f55\u81ea\u5b9a\u4e49\u8ba1\u7b97e\u7684\u5e42\u7684\u51fd\u6570\uff1f<\/strong><br \/>\u4f60\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684\u51fd\u6570\u6765\u8ba1\u7b97e\u7684\u5e42\uff0c\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">import math\n\ndef calculate_exponent(x):\n    return math.e ** x\n\nresult = calculate_exponent(3)  # \u8ba1\u7b97e\u7684\u4e09\u6b21\u65b9\nprint(result)\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6269\u5c55\u6216\u4fee\u6539\u8ba1\u7b97\u903b\u8f91\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u8868\u793ae\u7684\u51e0\u6b21\u65b9\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u6570\u5b66\u5e93math\u4e2d\u7684exp\u51fd\u6570\u3001\u4f7f\u7528numpy\u5e93\u4e2d\u7684exp [&hellip;]","protected":false},"author":3,"featured_media":1089295,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1089289"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1089289"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1089289\/revisions"}],"predecessor-version":[{"id":1089297,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1089289\/revisions\/1089297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1089295"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1089289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1089289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1089289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}