\u6709\u9650\u8981\u7d20\u6cd5\u306e\u5177\u4f53\u7684\u306a\u8a08\u7b97\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u7269\u7406\u6cd5\u5247\u306f\u901a\u5e38\u3001\u77ed\u304f\u8a18\u8ff0\u3067\u304d\u308b\u305f\u3081\u5fae\u5206\u65b9\u7a0b\u5f0f\u3067\u4e0e\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u6d41\u4f53\u306b\u95a2\u3059\u308b\u3082\u306e\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u4fdd\u5b58\u5247\u3068\u7269\u8cea\u306e\u4fdd\u5b58\u5247\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u3068\u3081\u305f\u306e\u304c\u30ca\u30d3\u30a8\u30fb\u30b9\u30c8\u30fc\u30af\u30b9\u65b9\u7a0b\u5f0f\u3067\u3059\u304c\u3001\u3084\u3084\u3053\u3057\u304f\u306a\u308b\u306e\u3067\u3001\u4fdd\u5b58\u5247\u304b\u3089\u51fa\u3066\u304f\u308b\u71b1\u3084\u7269\u8cea\u306e\u62e1\u6563\u3092\u8868\u3059\u62e1\u6563\u65b9\u7a0b\u5f0f\uff08\u71b1\u4f1d\u5c0e\u65b9\u7a0b\u5f0f\uff09\u3092\u4f8b\u306b\u3068\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30d5\u30a3\u30c3\u30af\u306e\u6cd5\u5247\u306e\uff13\u6b21\u5143\u7248\u3067\u3001
\nk\u25b3T=-\u2202q\/\u2202t \uff08\u71b1\u4f1d\u5c0e\u306e\u5834\u5408\uff09\u3001\u2202c\/\u2202t=D\u0394c \u306e\u3088\u3046\u306a\u5f62\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001T\u306f\u6e29\u5ea6\u3001c\u306f\u6fc3\u5ea6\u3001k\u3084D\u306f\u4fc2\u6570\u3002\u307e\u305f\u3001\u30e9\u30d7\u30e9\u30b7\u30a2\u30f3\u3000\u0394=\uff08\u52fe\u914d\u2207\u306e\u4e8c\u4e57\uff09\u3067\u30011\u6b21\u5143\u306e\u5834\u5408\u306f \u22022\/\u2202x2 \u3067\u3059\u3002
\n\u5c0e\u51fa\u306f
\nhttps:\/\/ja.wikipedia.org\/wiki\/%E3%83%95%E3%82%A3%E3%83%83%E3%82%AF%E3%81%AE%E6%B3%95%E5%89%87
\n\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3092\u6709\u9650\u8981\u7d20\uff08\u30e1\u30c3\u30b7\u30e5\uff08\uff1d\u8003\u3048\u3066\u3044\u308b\u7269\u4f53\u30fb\u6d41\u8def\u306a\u3069\u3092\u56db\u9762\u4f53\u306e\u96c6\u5408\u4f53\u306b\u5206\u5272\u3057\u305f\u3082\u306e\uff09\u306e\u4e2d\u306e\uff11\u3064\u306e\u56db\u9762\u4f53\u9818\u57df\uff09\u306b\u5bfe\u3057\u3066\u7a4d\u5206\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u4e0a\u8a18\u5c0e\u51fa\u306e\u9006\uff08\u30d5\u30a3\u30c3\u30af\u306e\u7b2c\u4e00\u6cd5\u5247\u306b\u623b\u308b\uff09\u3092\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u56db\u9762\u4f53\u306e\uff14\u3064\u306e\u5883\u754c\u9762\u3092\u901a\u3057\u3066\u6d41\u308c\u3053\u3080\u71b1\u307e\u305f\u306f\u7269\u8cea\u304c\u6e29\u5ea6\u3084\u6fc3\u5ea6\u306e\u52fe\u914d\u306b\u6bd4\u4f8b\u5b9a\u6570\u3092\u639b\u3051\u305f\u3082\u306e\u306b\u306b\u7b49\u3057\u3044\u3068\u3044\u3046\u3053\u3068\u3092\u4f7f\u3044\u307e\u3059\u3002\u3059\u306a\u308f\u3061\u3001\u62e1\u6563\u65b9\u7a0b\u5f0f\u3067\u3044\u3046\u3068
\n\uff08\u3042\u308b\u9762\u3092\u901a\u3063\u3066\u6d41\u308c\u8fbc\u3080\u6eb6\u8cea\u306e\u7dcf\u548c\uff09=D\u2207\uff08\u6fc3\u5ea6\uff09\u3000\u3068\u306a\u308a\u3001\u2207(\u6fc3\u5ea6)=\uff08\u8003\u3048\u3066\u3044\u308b\u56db\u9762\u4f53\u4e2d\u5fc3\u3067\u306e\u6fc3\u5ea6\u30fc\u96a3\u306e\u56db\u9762\u4f53\u4e2d\u5fc3\u3067\u306e\u6fc3\u5ea6\uff09\u00f7\u56db\u9762\u4f53\u4e2d\u5fc3\u9593\u306e\u8ddd\u96e2
\n\u3068\u306a\u308a\u3001\u5404\u9762\u3001\u5404\u56db\u9762\u4f53\u6709\u9650\u8981\u7d20\u306b\u5bfe\u3057\u3066\u9023\u7acb\u65b9\u7a0b\u5f0f\u304c\u3067\u304d\u307e\u3059\u3002\u7269\u4f53\u3084\u6d41\u8def\u306e\u5883\u754c\u3067\u5727\u529b\u3084\u6e29\u5ea6\u3092\u6c7a\u3081\u3066\u3001\u305d\u308c\u3092\u89e3\u3051\u3070\u3088\u3044\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002
\n\u4e0a\u8a18\u3067\u300c\u30d5\u30a3\u30c3\u30af\u306e\u7b2c\u4e00\u6cd5\u5247\u306b\u623b\u308b\u300d\u3068\u3044\u3046\u3068\u3053\u308d\u306f\u3001\u300c\u767a\u6563\u5b9a\u7406\u300d\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u96fb\u6c17\u3067\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5bb9\u91cf\u3092\u6c42\u3081\u308b\u300c\u30ac\u30a6\u30b9\u306e\u5b9a\u7406\u300d\u3068\u540c\u3058\u3082\u306e\u3067\u3059\u3002\u5fae\u5206\u65b9\u7a0b\u5f0f\u3092\u5883\u754c\u9762\u306e\u51fa\u5165\u308a\u306b\u623b\u3059\u64cd\u4f5c\u304c\u7a4d\u5206\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308c\u3070\u7d0d\u5f97\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002
\nhttps:\/\/ja.wikipedia.org\/wiki\/%E7%99%BA%E6%95%A3%E5%AE%9A%E7%90%86
\n\u5883\u754c\u3067\u306e\u7a4d\u5206\u64cd\u4f5c\u3067\u4e2d\u8eab\u304c\u308f\u304b\u308b\u3001\u3068\u3044\u3046\u8a71\u306e\u95a2\u9023\u3067\u3061\u3087\u3063\u3068\u9762\u767d\u3044\u9053\u5177\u3068\u3057\u3066\u56f3\u5f62\u306e\u5468\u56f2\u3092\u306a\u305e\u308b\u3068\u9762\u7a4d\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30d7\u30e9\u30cb\u30e1\u30fc\u30bf\u3068\u3044\u3046\u306e\u304c\u3042\u308a\u307e\u3059\u3002
\nhttps:\/\/ja.wikipedia.org\/wiki\/%E3%83%97%E3%83%A9%E3%83%8B%E3%83%A1%E3%83%BC%E3%82%BF
\n\u4fa1\u683c\u306f10\u4e07\u5186\u304f\u3089\u3044\u3067\u3059\u3002\u4e0d\u52d5\u7523\u5c4b\u3055\u3093\u306e\u9053\u5177\u3067\u3057\u3087\u3046\u304b\uff1f
\nhttp:\/\/www.socio2001.com\/planimeter.php<\/p>\n
\u82f1\u8a9e\u306f\u3000https:\/\/en.wikipedia.org\/wiki\/Planimeter
\n“A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.”
\narbitrary \u4efb\u610f\u306e
\n\u201dA planimeter (1908) measuring the indicated area by tracing its perimeter\u201d
\ntracing < trace \u8de1\u3092\u306a\u305e\u308b\u3001\u30c8\u30ec\u30fc\u30b9\u3059\u308b
\nperimeter \u30da\u300c\u30ea\u300d\u30e1\u30fc\u30bf\u3000\u5468\u56f2\u3001\u5468\u9577
\n“When the planimeter’s measuring wheel moves perpendicular to its axis, it rolls, and this movement is recorded. When the measuring wheel moves parallel to its axis, the wheel skids without rolling, so this movement is ignored. That means the planimeter measures the distance that its measuring wheel travels, projected perpendicularly to the measuring wheel’s axis of rotation. The area of the shape is proportional to the number of turns through which the measuring wheel rotates.”
\nperpendicular\u3000\u30d1\u30fc\u300c\u30da\u300d\u30f3\u30c7\u30a3\u30ad\u30e5\u3089\u30fc\u3000\u5782\u76f4\u306a\u3000\u3000<-> parallel \u5e73\u884c\u306a
\nskid \u6ed1\u308b\u3000\u3000\u6e2f\u6e7e\u306a\u3069\u3067\u91cd\u3044\u3082\u306e\u3092\u904b\u3076\u6642\u306b\u8377\u7269\u306e\u4e0b\u306b\u7f6e\u304f\u89d2\u6750
\n\u201dThe operation of a linear planimeter can be justified by applying Green’s theorem, though the design of the major varieties predates the theorem’s proof.\u201d
\nGreen’s theorem \u30b0\u30ea\u30fc\u30f3\u306e\u5b9a\u7406\u3000\u5883\u754c\u7dda\u3068\u9762\u5185\u306e\u7a4d\u5206\u306e\u9593\u306e\u95a2\u4fc2\u5f0f\u3067\u3059\u3002\u30b9\u30c8\u30fc\u30af\u30b9\u306e\u5b9a\u7406\u306e2\u6b21\u5143\u7248\u3002
\nthe major varieties \u3044\u308d\u3044\u308d\u306a\u5f62\u5f0f\u306e\u4e3b\u306a\u3082\u306e
\npredate \u30d7\u30ea\u300c\u30c7\u300d\u30a4\u30c8\u3000\u5148\u3093\u3058\u308b\u3001\u5148\u884c\u3059\u308b
\nrealter \u300c\u30ec\u300d\u308b\u30bf\u30fc\u3000\u4e0d\u52d5\u7523\u5c4b<\/p>\n","protected":false},"excerpt":{"rendered":"
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