{"id":7560,"date":"2024-02-08T16:55:12","date_gmt":"2024-02-08T07:55:12","guid":{"rendered":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/?p=7560"},"modified":"2024-02-12T15:28:06","modified_gmt":"2024-02-12T06:28:06","slug":"from-sympy-abc-import-%e3%81%99%e3%82%8b%e9%9a%9b%e3%81%ae%e9%a0%86%e7%95%aa","status":"publish","type":"post","link":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/7560\/","title":{"rendered":"from sympy.abc import * \u3059\u308b\u969b\u306e\u9806\u756a\u3068\u8ffd\u8a18\u4e8b\u9805"},"content":{"rendered":"

sympy.abc \u306e\u30b3\u30fc\u30c9\u306b\u306f\uff0c<\/p>\n

Caveats\r\n=======\r\n\r\n1. As of the time of writing this, the names ``O``, ``S``, ``I``, ``N``,\r\n``E``, and ``Q`` are colliding with names defined in SymPy. If you import them\r\nfrom both ``sympy.abc`` and ``sympy``, the second import will \"win\".\r\nThis is an issue only for * imports, which should only be used for short-lived\r\ncode such as interactive sessions and throwaway scripts that do not survive\r\nuntil the next SymPy upgrade, where ``sympy`` may contain a different set of\r\nnames.<\/pre>\n
\u3068\u3042\u308b\u3002\u307e\u305f\uff0csympy.abc \u306b\u306f\u30ae\u30ea\u30b7\u30e3\u6587\u5b57\u306e\u5927\u6587\u5b57\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u3002\u3057\u305f\u304c\u3063\u3066\uff0c\u4eca\u5f8c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u305f\u3089\u3069\u3046\u304b\uff0c\u3068\u3044\u3046\u30e1\u30e2\u3002<\/p>\n
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\u5148\u306b sympy.abc \u3092 import<\/h3>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[1]:<\/div>\n
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# \u5148\u306b sympy.abc \u3092 import<\/span>\r\nfrom<\/span> sympy.abc<\/span> import<\/span> *<\/span>\r\nfrom<\/span> sympy<\/span> import<\/span> *<\/span>\r\n\r\n# \u5c0f\u6587\u5b57 \u03bb \u306f lamda (lambda \u3068\u306e\u91cd\u8907\u3092\u907f\u3051\u308b\u305f\u3081)<\/span>\r\n# \u30ae\u30ea\u30b7\u30e3\u6587\u5b57\u306e\u5927\u6587\u5b57\u306f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\uff0c\u3044\u304f\u3064\u304b\u8ffd\u52a0<\/span>\r\nGamma<\/span>,<\/span> Delta<\/span>,<\/span> Theta<\/span>,<\/span> Lambda<\/span>,<\/span> Pi<\/span> =<\/span> symbols<\/span>(<\/span>'Gamma, Delta, Theta, Lambda, Pi'<\/span>)<\/span>\r\nSigma<\/span>,<\/span> Phi<\/span>,<\/span> Psi<\/span>,<\/span> Omega<\/span> =<\/span> symbols<\/span>(<\/span>'Sigma, Phi, Psi, Omega'<\/span>)<\/span>\r\n\r\ninit_printing<\/span>()<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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N()<\/code> \u3082\u4f7f\u3048\u308b\u3057\uff0cpi<\/code>, E<\/code> \u3082\u4f7f\u3048\u308b\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[2]:<\/div>\n
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N<\/span>(<\/span>pi<\/span>)<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[2]:<\/div>\n
$\\displaystyle 3.14159265358979$<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[3]:<\/div>\n
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N<\/span>(<\/span>E<\/span>)<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[3]:<\/div>\n
$\\displaystyle 2.71828182845905$<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u30ae\u30ea\u30b7\u30a2\u6587\u5b57\u306e\u5927\u6587\u5b57\u3082\u5b9a\u7fa9\u3055\u308c\u308b<\/h3>\n<\/div>\n<\/div>\n<\/div>\n
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In\u00a0[4]:<\/div>\n
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lamda<\/span>,<\/span> Lambda<\/span>,<\/span> Sigma<\/span>,<\/span> Omega<\/span>\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[4]:<\/div>\n
$\\displaystyle \\left( \\lambda, \\ \\Lambda, \\ \\Sigma, \\ \\Omega\\right)$<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
sympy.abc \u306e\u30b3\u30fc\u30c9\u306b\u306f\uff0c<\/p>\n
 Caveats ======= 1. As of the time of writing this, the names “O“, “S“, “I“, “N“, “E“, and “Q“ are colliding with names defined in SymPy. If you import them from both “sympy.abc“ and “sympy“, the second import will “win”. This is an issue only for * imports, which should only be used for short-lived code such as interactive sessions and throwaway scripts that do not survive until the next SymPy upgrade, where “sympy“ may contain a different set of names. <\/p>\n
\u3068\u3042\u308b\u3002\u307e\u305f\uff0csympy.abc \u306b\u306f\u30ae\u30ea\u30b7\u30e3\u6587\u5b57\u306e\u5927\u6587\u5b57\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u3002\u3057\u305f\u304c\u3063\u3066\uff0c\u4eca\u5f8c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u305f\u3089\u3069\u3046\u304b\uff0c\u3068\u3044\u3046\u30e1\u30e2\u3002<\/p>\n","protected":false},"author":33,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-7560","post","type-post","status-publish","format-standard","hentry","category-sympy","nodate","item-wrap"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t