{"id":14396,"date":"2024-03-29T22:07:01","date_gmt":"2024-03-29T14:07:01","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=14396"},"modified":"2024-05-05T12:30:28","modified_gmt":"2024-05-05T04:30:28","slug":"%e5%9f%ba%e4%ba%8e-sympy-%e7%9a%84%e5%8f%8d%e5%87%bd%e6%95%b0%e6%b1%82%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=14396","title":{"rendered":"\u57fa\u4e8e SymPy \u6c42\u51fa\u51fd\u6570\u7684\u53cd\u51fd\u6570\uff08\u9006\u51fd\u6570\uff09"},"content":{"rendered":"<p><strong>\u4f8b\u4e00<\/strong><br \/>\nf(x) = 2x + 3<br \/>\n\u8fd9\u4e2a\u51fd\u6570\u5f88\u7b80\u5355\uff0c\u53ef\u4ee5\u770b\u51fa\u5b83\u7684\u53cd\u51fd\u6570\u662f\uff08\u4ee4 y=f(x) \uff09\uff1a<code class=\"katex-inline\">x=\\frac{y-3}{2}<\/code><\/p>\n<p>\u4f7f\u7528 SymPy \u6c42\u89e3\u53ef\u4ee5\u91c7\u7528\u8fd9\u6837\u7684\u601d\u8def\uff1a<br \/>\n\u5df2\u77e5\u51fd\u6570 f(x)=2x+3, \u4ee4 y = f(x), \u5373\u6784\u5efa\u8d77\u4e00\u4e2a\u7b49\u5f0f y=2x+3, \u6c42\u89e3\u53cd\u51fd\u6570\u5c31\u662f\u53d8\u6210\u7528 y \u6765\u8868\u793a x\u3002\u5219\u53ef\u4ee5\u628a y \u770b\u4f5c\u4e00\u4e2a\u5e38\u6570\uff0cx \u662f\u672a\u77e5\u6570\uff0c\u5c1d\u8bd5\u6c42\u89e3\u672a\u77e5\u6570 x \u7684\u503c\uff0c\u5c31\u80fd\u628a x \u7528 y \u8868\u793a\u51fa\u6765\u3002<\/p>\n<pre><code class=\"language-py\">import sympy as sy\n\nx, y = sy.symbols(&#039;x y&#039;) # \u5b9a\u4e49\u7b26\u53f7\nfx = 2 * x + 3 # \u5b9a\u4e49\u539f\u51fd\u6570\n\nequation = sy.Eq(fx, y) # \u6784\u5efa\u7b49\u5f0f fx = 2x+3 = y\nanswer_list = sy.solve(equation, x) # \u6c42\u89e3\u7b49\u5f0f y = 2x + 3 \u4e2d\u7684 x \u672a\u77e5\u6570\nfor answer in answer_list: # \u6253\u5370\u7ed3\u679c\n    display(answer)<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2024\/03\/image-1711720834039.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 174px; --smush-placeholder-aspect-ratio: 174\/85;\" \/><\/p>\n<p><strong>\u4f8b\u4e8c<\/strong><br \/>\n<code class=\"katex-inline\">f(x) = a\\sin x+b<\/code><\/p>\n<p>\u91c7\u7528\u76f8\u540c\u7684\u601d\u8def\uff1a<\/p>\n<pre><code class=\"language-py\">import sympy as sy\n\nx, y, a, b = sy.symbols(&#039;x y a b&#039;)\nfx = a * sy.sin(x) + b\n\nequation = sy.Eq(fx, y)\nanswer_list = sy.solve(equation, x)\nfor answer in answer_list:\n    display(answer)<\/code><\/pre>\n<p>\u4e24\u79cd\u60c5\u51b5\u90fd\u6c42\u51fa\u6765\u4e86<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2024\/03\/image-1711721087632.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 163px; --smush-placeholder-aspect-ratio: 163\/114;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f8b\u4e00 f(x) = 2x + 3 \u8fd9\u4e2a\u51fd\u6570\u5f88\u7b80\u5355\uff0c\u53ef\u4ee5\u770b\u51fa\u5b83\u7684\u53cd\u51fd\u6570\u662f\uff08\u4ee4 y=f(x) \uff09\uff1ax=\\frac{ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1],"tags":[],"class_list":["post-14396","post","type-post","status-publish","format-standard","hentry","category-all"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/14396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14396"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/14396\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}