{"id":2261,"date":"2022-01-11T17:23:08","date_gmt":"2022-01-11T08:23:08","guid":{"rendered":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/?p=2261"},"modified":"2022-01-14T15:04:20","modified_gmt":"2022-01-14T06:04:20","slug":"%f4%8f%b0%80%f4%8f%b0%81%f4%8f%b0%82%f4%8f%b0%83%f4%8f%b0%81-%f4%8f%b0%85%f4%8f%b0%86%f4%8f%b0%87%f4%8f%b0%88%f4%8f%b0%89%f4%8f%b0%8a%f4%8f%b0%8b%f4%8f%b0%8c%f4%8f%b0%8d%f4%8f%b0%8e%f4%8f%b0%8f","status":"publish","type":"post","link":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/2261\/","title":{"rendered":"SymPy \u3067\u4f5c\u6210\u3057\u305f\u30b0\u30e9\u30d5\u306e\u90e8\u5206\u3060\u3051\u3092\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3059\u308b"},"content":{"rendered":"
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SymPy の準備 <\/a><\/h3>\n

Notebook \u4e0a\u306e\u30b0\u30e9\u30d5\u306e\u8868\u793a\u3092 svg \u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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In [1]:<\/div>\n
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<\/span>from<\/span> sympy<\/span> import<\/span> *<\/span>\r\nfrom<\/span> sympy.abc<\/span> import<\/span> *<\/span>\r\nfrom<\/span> sympy<\/span> import<\/span> I<\/span>,<\/span> pi<\/span>,<\/span> E<\/span>\r\nfrom<\/span> IPython.display<\/span> import<\/span> set_matplotlib_formats<\/span>\r\n%<\/span>matplotlib<\/span> inline\r\nset_matplotlib_formats<\/span>(<\/span>'svg'<\/span>)<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n
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保存したいグラフに名前をつける <\/a><\/h3>\n
\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3057\u305f\u3044\u30b0\u30e9\u30d5\u306b\u540d\u524d\u3092\u3064\u3051\u308b\u3002\u4ee5\u4e0b\u3067\u306f p1<\/code> \u3068\u3044\u3046\u540d\u524d\u3092\u3064\u3051\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In [2]:<\/div>\n
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<\/span>p1<\/span> =<\/span> plot<\/span>(<\/span>sin<\/span>(<\/span>x<\/span>),<\/span> (<\/span>x<\/span>,<\/span> -<\/span>2<\/span>*<\/span>pi<\/span>,<\/span> 2<\/span>*<\/span>pi<\/span>))<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n
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\n\n \n  \n   \n    \n    2022-01-14T10:14:09.657399<\/dc:date>\n    image\/svg+xml<\/dc:format>\n    \n     \n      Matplotlib v3.3.4, https:\/\/matplotlib.org\/<\/dc:title>\n     <\/cc:Agent>\n    <\/dc:creator>\n   <\/cc:Work>\n  <\/rdf:RDF>\n <\/metadata>\n \n <\/defs>\n \n  \n   \n  <\/g>\n  \n   \n    \n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n      <\/defs>\n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n       \n       \n      <\/defs>\n      \n      \n      \n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n  <\/g>\n <\/g>\n \n  \n   \n  <\/clipPath>\n <\/defs>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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最も簡単に png で保存する <\/a><\/h3>\n
\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u3068\uff0c\u7c21\u5358\u306b\u30b0\u30e9\u30d5\u3092 png \u3067\u4fdd\u5b58\u3067\u304d\u307e\u3059\u304c\uff0c\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u89e3\u50cf\u5ea6\u304c\u30b7\u30e7\u307c\u3044\u306e\u3067\uff0c\u7dba\u9e97\u306a\u30b0\u30e9\u30d5\u306b\u306f\u898b\u3048\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In [3]:<\/div>\n
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<\/span>p1<\/span>.<\/span>save<\/span>(<\/span>'.\/p1.png'<\/span>)<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n
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\n\n \n  \n   \n    \n    2022-01-12T11:26:28.697012<\/dc:date>\n    image\/svg+xml<\/dc:format>\n    \n     \n      Matplotlib v3.3.4, https:\/\/matplotlib.org\/<\/dc:title>\n     <\/cc:Agent>\n    <\/dc:creator>\n   <\/cc:Work>\n  <\/rdf:RDF>\n <\/metadata>\n \n <\/defs>\n \n  \n   \n  <\/g>\n  \n   \n    \n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n      <\/defs>\n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n       \n       \n      <\/defs>\n      \n      \n      \n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n  <\/g>\n <\/g>\n \n  \n   \n  <\/clipPath>\n <\/defs>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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解像度を変更して，こぎれいな png で保存する <\/a><\/h3>\n
\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066 figure.dpi<\/code> \u3092 300<\/code> \u7a0b\u5ea6\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In [4]:<\/div>\n
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<\/span>import<\/span> matplotlib.pyplot<\/span> as<\/span> plt<\/span>\r\nplt<\/span>.<\/span>rcParams<\/span>[<\/span>'figure.dpi'<\/span>]<\/span> =<\/span> 300<\/span>\r\n\r\n# \u3053\u308c\u4ee5\u964d\u306f dpi=300 \u3067\u89e3\u50cf\u5ea6\u306e\u9ad8\u3044\u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u308b<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n
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In [5]:<\/div>\n
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<\/span>p1<\/span>.<\/span>save<\/span>(<\/span>'.\/p1-300.png'<\/span>)<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n
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\n\n \n  \n   \n    \n    2022-01-12T11:26:38.910068<\/dc:date>\n    image\/svg+xml<\/dc:format>\n    \n     \n      Matplotlib v3.3.4, https:\/\/matplotlib.org\/<\/dc:title>\n     <\/cc:Agent>\n    <\/dc:creator>\n   <\/cc:Work>\n  <\/rdf:RDF>\n <\/metadata>\n \n <\/defs>\n \n  \n   \n  <\/g>\n  \n   \n    \n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n       <\/defs>\n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n      <\/defs>\n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n     \n      \n       \n      <\/defs>\n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n        \n        \n       <\/defs>\n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n      \n       \n      <\/g>\n     <\/g>\n     \n      \n      \n       \n       \n       \n       \n      <\/g>\n     <\/g>\n    <\/g>\n    \n     \n     \n      \n       \n       \n       \n      <\/defs>\n      \n      \n      \n      \n     <\/g>\n    <\/g>\n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n   \n    \n   <\/g>\n  <\/g>\n <\/g>\n \n  \n   \n  <\/clipPath>\n <\/defs>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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JupyterHub \u306e\u30db\u30fc\u30e0\u304b\u3089 p1.png<\/code> \u3068 p1-300.png<\/code> \u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u89e3\u50cf\u5ea6\u3092\u6bd4\u3079\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u9ad8\u3044\u89e3\u50cf\u5ea6\u306e\u753b\u50cf\u306f\u62e1\u5927\u3057\u3066\u3082\u7dba\u9e97\u3067\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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直接 pdf  としては保存できない <\/a><\/h3>\n
\u4ee5\u4e0b\u306e\u3088\u3046\u306b\uff0cp1.save()<\/code> \u3067\u76f4\u63a5 pdf \u3068\u3057\u3066\u4fdd\u5b58\u3067\u304d\u306a\u3044\u304b\u8a66\u3057\u3066\u307f\u308b\u3068\uff0c\u30a8\u30e9\u30fc\u3067\u3046\u307e\u304f\u3044\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In [ ]:<\/div>\n
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<\/span>p1<\/span>.<\/span>save<\/span>(<\/span>'.\/aho.pdf'<\/span>)<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n
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一旦 svg として保存し，pdf に変換する <\/a><\/h3>\n<\/div>\n<\/div>\n<\/div>\n
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In [3]:<\/div>\n
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<\/span>p1<\/span>.<\/span>save<\/span>(<\/span>'.\/p1.svg'<\/span>)<\/span>\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n
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\u5f18\u5927 JupyterHub \u3067\u306f rsvg-convert<\/code> \u30b3\u30de\u30f3\u30c9\u304c\u4f7f\u3048\u307e\u3059\u3002<\/p>\n
sudo apt install librsvg2-bin<\/code> \u6e08\u307f\u3067\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
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In [7]:<\/div>\n
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<\/span>%%bash\r\nrsvg-convert -f pdf -o p1.pdf p1.svg\r\n<\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u4e0a\u8a18\u306e\u30bb\u30eb\u3092\u5b9f\u884c\u5f8c\u306f\uff0cp1.pdf<\/code> \u3068\u3044\u3046 pdf \u30d5\u30a1\u30a4\u30eb\u304c\u3067\u304d\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u3053\u308c\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
SymPy の準備 Read More …<\/a><\/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":[14,11],"tags":[],"class_list":["post-2261","post","type-post","status-publish","format-standard","hentry","category-jupyter","category-python"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/posts\/2261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/comments?post=2261"}],"version-history":[{"count":8,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/posts\/2261\/revisions"}],"predecessor-version":[{"id":2313,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/posts\/2261\/revisions\/2313"}],"wp:attachment":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/media?parent=2261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/categories?post=2261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/heroic-2020\/wp-json\/wp\/v2\/tags?post=2261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}