{"id":165151,"date":"2020-10-01T07:00:32","date_gmt":"2020-09-30T23:00:32","guid":{"rendered":"http:\/\/4563.org\/?p=165151"},"modified":"2020-10-01T07:00:32","modified_gmt":"2020-09-30T23:00:32","slug":"%e4%bb%a5%e4%b8%8b-python-%e8%ae%a1%e7%ae%97%e7%bb%93%e6%9e%9c%e5%a6%82%e4%bd%95%e5%be%97%e5%88%b0%e7%ba%af%e7%b2%b9%e7%9a%84%e6%95%b0%e5%80%bc%e8%a7%a3%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=165151","title":{"rendered":"\u4ee5\u4e0b Python \u8ba1\u7b97\u7ed3\u679c\u5982\u4f55\u5f97\u5230\u7eaf\u7cb9\u7684\u6570\u503c\u89e3\uff1f"},"content":{"rendered":"
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\u4ee5\u4e0b Python \u8ba1\u7b97\u7ed3\u679c\u5982\u4f55\u5f97\u5230\u7eaf\u7cb9\u7684\u6570\u503c\u89e3\uff1f <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : Hlianbobo <\/span> <\/i> 2<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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\u8bf7\u770b\u4e0b\u65b9\u4ee3\u7801\u3002\u5982\u4f55\u80fd\u5728\u7ed3\u679c\u4e2d\u663e\u793a\u7eaf\u7cb9\u7684\u6570\u503c\u89e3\uff0c\u800c\u4e0d\u8981\u7559\u4e00\u4e2a\u6839\u53f7 2 \u7684\u5c3e\u5df4\u3002 import math
from math import e import numpy as np from sympy import * from scipy import integrate<\/p>\n

v0=500 g=9.8 t=72.15 shuipingjuli=v0cos(pi\/4)t chuizhijuli=v0<\/em>sin(pi\/4)t-0.5<\/em>g<\/em>(t**2) chuizhijuli<\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1a-25507.55025 + 18037.5*sqrt(2)<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (5<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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    \u8cc7\u6df1\u5927\u4f6c : necomancer <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u662f\u7528\u7684 sage \u5417\uff1f\u8bd5\u8bd5 chuizhijuli.n(digits=100) <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Hlianbobo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @necomancer \u8c22\u8c22\u56de\u590d\u3002\u4ee5\u4e0a\u4ee3\u7801\u662f\u5728 python \u4e2d\u8fd0\u884c\u7684\u3002
    chuizhijuli.n(digits=100)———-\u8bf7\u95ee\u8fd9\u53e5\u4ee3\u7801\u662f\u4ec0\u4e48\u8bed\u8a00? <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : lance6716 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u767e\u5ea6\u77e5\u9053\u8fbe\u4eba\u53c8\u6765\u4e86\u554a <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : necomancer <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Hlianbobo sympy \u7684\u8bdd\u8bd5\u8bd5 N(chuizhijuli, 100)
    obj.n() \u65b9\u6cd5\u5e94\u8be5\u662f\u53ea\u6709 sage\uff0cobj.n() \u548c N(obj) \u65b9\u6cd5 sage \u90fd\u884c\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Hlianbobo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @necomancer \u8c22\u8c22\u9ad8\u8d28\u91cf\u7684\u56de\u590d\u3002\u786e\u5b9e\u53ef\u4ee5\u5f97\u5230\u6570\u503c\u89e3\u4e86\u3002\u8fd9\u91cc\u6709\u4e24\u70b9\u5411\u4f60\u6c42\u6559\uff1a
    1 \u3001\u6211\u539f\u6765\u4ee5\u4e3a\u4e4b\u6240\u4ee5\u5f97\u51fa\u89e3\u6790\u89e3 sqrt(2)\uff0c\u662f\u56e0\u4e3a\u6211 from sympy import * \uff0c\u5373\u8c03\u7528\u4e86\u8fd9\u4e2a python \u4e0b\u7684\u6c42\u89e3\u6790\u89e3\u7684\u5e93\u3002\u4f46\u662f\u6211\u53d1\u73b0\u6211\u53bb\u6389\u4e86\u8fd9\u4e00\u884c\u4ee3\u7801\u540e\uff0c\u8fd0\u7b97\u7ed3\u679c\u4ecd\u7136\u5305\u62ec sqrt(2)\u3002\u8fd9\u5c31\u6bd4\u8f83\u5947\u602a\u4e86\u3002\u96be\u9053 python \u9ed8\u8ba4\u7684\u8fd0\u7b97\u89c4\u5219\u5c31\u4e0d\u6c42 sqrt \u7684\u6570\u503c\u89e3\u4e48?\u5fc5\u987b\u8981 N(chuizhijuli, 100)\u4e00\u4e0b\u624d\u53ef\u4ee5\u4e48?
    2 \u3001\u611f\u89c9\u4f60\u5bf9 python \u548c sage \u7684\u6570\u503c\u8fd0\u7b97\u548c\u7b26\u53f7\u8fd0\u7b97\u77e5\u8bc6\u638c\u63e1\u7684\u975e\u5e38\u5168\u9762\u3002\u8fd9\u4e9b\u76f8\u5173\u77e5\u8bc6\u4f60\u5168\u90fd\u662f\u4ece\u5b98\u65b9\u82f1\u6587\u6587\u6863\u4e2d\u83b7\u5f97\u4e48\uff1f\u8fd8\u662f\u901a\u8fc7\u4e00\u4e9b\u76f8\u5173\u4f18\u79c0\u4e66\u7c4d\u4e60\u5f97\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u4ee5\u4e0b Python \u8ba1\u7b97\u7ed3\u679c\u5982\u4f55\u5f97…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/165151"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=165151"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/165151\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=165151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=165151"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=165151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}