{"published":"2019-10-05 14:52:00","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.mynote-jp.com%2Fentry%2FCalculating-Fourier-transform\" title=\"\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u306e\u516c\u5f0f\u3068\u5c0e\u51fa - Notes_JP\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","provider_url":"https://hatena.blog","author_name":"IsThisAPen","image_url":"https://m.media-amazon.com/images/I/11y0+U2JVQL._SL500_.jpg","blog_title":"Notes_JP","url":"https://www.mynote-jp.com/entry/Calculating-Fourier-transform","title":"\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u306e\u516c\u5f0f\u3068\u5c0e\u51fa","author_url":"https://blog.hatena.ne.jp/IsThisAPen/","type":"rich","provider_name":"Hatena Blog","description":"POINT \u30d5\u30fc\u30ea\u30a8\u5909\u63db\u306e\u95a2\u4fc2\u5f0f\u3068\u305d\u306e\u5c0e\u51fa\u3092\u4e00\u89a7\u306b\u3057\u307e\u3057\u305f\uff0e \u5b9a\u7fa9 \u9006\u5909\u63db \u6027\u8cea $f(x+a)$ $e^{iax}f(x)$ $f(ax)$ $\\bar{f}(x)$ \u30d5\u30fc\u30ea\u30a8\u9006\u5909\u63db \u5076\u95a2\u6570 \u5947\u95a2\u6570 \u5b9f\u95a2\u6570 \u76f8\u95a2\u95a2\u6570\u30fb\u7573\u307f\u8fbc\u307f \u30d5\u30fc\u30ea\u30a8\u5909\u63db\u306e\u5177\u4f53\u4f8b \u6307\u6570\u95a2\u6570 \u30ac\u30a6\u30b9\u95a2\u6570 \u30c7\u30eb\u30bf\u95a2\u6570 \u304f\u3057\u578b\u95a2\u6570 \u5468\u671f\u95a2\u6570 \u4ed8\u9332\uff1a2\u03c0\u306e\u4ed8\u3051\u65b9\u306e\u9055\u3044 \u5168\u4f53\u306e\u5b9a\u6570\u500d \u4fc2\u6570\u306e\u5b9a\u6570\u500d \u53c2\u8003\u6587\u732e \u5b9a\u7fa9\u95a2\u6570$f$\u306e\u30d5\u30fc\u30ea\u30a8\u5909\u63db$\\hat{f}=\\mathcal{F}[f]$\u3092\\begin{aligned} \\hat{f}(k) &=\\mathcal{F}[f](k) \\\\ &=\\frac{1}{\\sqrt{2\\pi}}\\i\u2026","categories":["\u7269\u7406\u5b66","\u7269\u7406\u5b66-\u7269\u7406\u6570\u5b66","\u7269\u7406\u5b66-\u7269\u7406\u6570\u5b66-\u7a4d\u5206","\u6570\u5b66","\u6570\u5b66-\u89e3\u6790\u5b66"],"height":"190","blog_url":"https://www.mynote-jp.com/"}