{"id":15205,"date":"2010-11-18T08:35:52","date_gmt":"2010-11-18T00:35:52","guid":{"rendered":"http:\/\/highscope.ch.ntu.edu.tw\/wordpress\/?p=15205"},"modified":"2021-10-06T16:30:43","modified_gmt":"2021-10-06T08:30:43","slug":"%e8%99%9b%e6%95%b8%e7%9a%84%e5%a6%99%e7%94%a8usefulness-of-imaginary-numbers","status":"publish","type":"post","link":"http:\/\/localhost\/%e8%99%9b%e6%95%b8%e7%9a%84%e5%a6%99%e7%94%a8usefulness-of-imaginary-numbers\/","title":{"rendered":"\u865b\u6578\u7684\u5999\u7528(Usefulness of Imaginary Numbers)"},"content":{"rendered":"

\u865b\u6578\u7684\u5999\u7528(Usefulness of Imaginary Numbers)<\/span><\/strong>
\n\u53f0\u5317\u5e02\u7acb\u7b2c\u4e00\u5973\u5b50\u9ad8\u7d1a\u4e2d\u5b78\u6578\u5b78\u79d1\u8607\u4fca\u9d3b\u8001\u5e2b\/ \u570b\u7acb\u53f0\u7063\u5e2b\u7bc4\u5927\u5b78\u6578\u5b78\u7cfb\u9000\u4f11\u6559\u6388\u6d2a\u842c\u751f\u8cac\u4efb\u7de8\u8f2f<\/span><\/strong><\/p>\n

\u8ac7\u8d77\u300c\u865b\u6578\u300d\u9019\u500b\u8a5e\uff0c\u53ea\u8981\u5b78\u7fd2\u904e\u9ad8\u4e2d\u6578\u5b78\u7684\u4eba\uff0c\u4e0d\u96e3\u806f\u60f3\u5230$$\\sqrt{-1}=i$$\uff0c\u76f8\u4fe1\u4e5f\u9806\u4fbf\u60f3\u8d77\u90a3\u6bb5\u8207 $$i$$ \u596e\u9b25\u7684\u6642\u5149\u3002\u5c0d\u8a31\u591a\u4eba\u800c\u8a00\uff0c\u5c07\u6578\u7cfb\u7531\u81ea\u7136\u6578\u2192\u6574\u6578\u2192\u6709\u7406\u6578\u2192\u5be6\u6578\uff0c\u9010\u6b65\u5730\u64f4\u5c55\u958b\u4f86\uff0c\u9084\u8aaa\u5f97\u4e0a\u9053\u7406\u3002\u4f46\u5c0d\u65bc\u8907\u6578\uff0c\u4e0d\u50c5\u6578\u7684\u5f88\u591a\u6027\u8cea\u4e0d\u518d\u9069\u7528(\u4f8b\u5982\u6bd4\u8f03\u5927\u5c0f)\uff0c\u9023\u63cf\u8ff0\u8907\u6578\u7cfb\u7684\u7d50\u69cb\uff0c\u4e5f\u5f97\u5229\u7528\u5e73\u9762\u4f86\u5c0d\u61c9\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u9664\u4e86\u8aaa\u660e\u4ee3\u6578\u57fa\u672c\u5b9a\u7406\u5916\uff0c\u8907\u6578\u9084\u80fd\u6709\u4ec0\u9ebc\u61c9\u7528\u5462\uff1f<\/span><\/p>\n

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\u57281687<\/strong>\u5e74\u6240\u51fa\u7248\u7684\u300a\u81ea\u7136\u54f2\u5b78\u4e4b\u6578\u5b78\u539f\u7406\u300b(Principia)\uff0c\u725b\u9813\u63d0\u51fa\u4e86\u7b2c\u4e00\u500b\u6642\u9593\u8207\u7a7a\u9593\u7684\u6578\u5b78\u6a21\u578b\u3002\u5728\u4ed6\u7684\u6a21\u578b\u4e2d\uff0c\u6642\u9593\u8207\u7a7a\u9593\u662f\u842c\u4e8b\u842c\u7269\u7684\u80cc\u666f\uff0c\u537b\u4e0d\u53d7\u842c\u4e8b\u842c\u7269\u7684\u5f71\u97ff\u3002\u6642\u9593\u7368\u7acb\u65bc\u7a7a\u9593\u4e4b\u5916\uff0c\u50cf\u662f\u4e00\u689d\u76f4\u7dda\u6216\u9435\u8ecc\uff0c\u5f80\u5169\u7aef\u5ef6\u4f38\u6c92\u6709\u76e1\u982d\uff1b\u800c\u4e14\u662f\u6c38\u6046\u4e0d\u8b8a\u7684\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u5b83\u904e\u53bb\u4e00\u76f4\u5b58\u5728\uff0c\u5c07\u4f86\u4e5f\u6703\u7e7c\u7e8c\u5b58\u5728\u3002\u9019\u6a23\u7684\u6a21\u578b\uff0c\u7b26\u5408\u591a\u6578\u4eba\u5c0d\u6642\u9593\u7684\u611f\u89ba\uff0c\u537b\u5f15\u8d77\u54f2\u5b78\u5bb6(<\/strong>\u5305\u62ec\u5eb7\u5fb7\u5728\u5167)<\/strong>\u6975\u5927\u7684\u56f0\u64fe\uff1a\u5047\u5982\u5b87\u5b99\u662f\u88ab\u5275\u9020\u51fa\u4f86\u7684\uff0c\u90a3\u9ebc\u5728\u5275\u4e16\u4e4b\u524d\uff0c\u70ba\u4f55\u6703\u7b49\u5f85\u7121\u9650\u9577\u4e45\u7684\u6642\u9593\u5462\uff1f\u53e6\u4e00\u65b9\u9762\uff0c\u5047\u5982\u5b87\u5b99\u904e\u53bb\u4e00\u76f4\u5b58\u5728\uff0c\u90a3\u9ebc\u8a72\u767c\u751f\u7684\u4e8b\u4e0d\u662f\u61c9\u8a72\u90fd\u767c\u751f\u4e86\uff1f\u6b77\u53f2\u4e0d\u5c31\u65e9\u8a72\u7d42\u7d50\u4e86\uff1f\u5eb7\u5fb7\u5c07\u9019\u500b\u554f\u984c\u7a31\u70ba\u300c\u7d14\u7cb9\u7406\u6027\u4e4b\u4e8c\u5f8b\u80cc\u53cd\u300d\uff0c\u56e0\u70ba\u5b83\u4f3c\u4e4e\u662f\u908f\u8f2f\u4e0a\u7684\u77db\u76fe\uff0c\u6839\u672c\u4e0d\u53ef\u80fd\u6709\u89e3\u3002\u4e8b\u5be6\u4e0a\uff0c\u9019\u500b\u77db\u76fe\u53ea\u5b58\u5728\u725b\u9813\u7684\u6578\u5b78\u6a21\u578b\u4e2d\uff01\u56e0\u70ba\u5176\u4e2d\u7684\u6642\u9593\u662f\u4e00\u689d\u7121\u9650\u9577\u7684\u76f4\u7dda\uff0c\u8207\u5b87\u5b99\u4e2d\u4efb\u4f55\u4e8b\u7269\u6beb\u7121\u95dc\u806f\u3002\u9019\u500b\u7f3a\u9677\u5f97\u4ee5\u89e3\u6c7a\uff0c\u662f\u611b\u56e0\u65af\u5766\u7684\u529f\u52de\u3002<\/p>\n

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