[其他] 請問反傅立葉轉換的公式到底是什麼?
課堂PPT的公式為 http://i.imgur.com/Uigiz7b.png
但Wiki後面的e^iax 正負號卻完全相反 https://goo.gl/uXDPCE
估狗一下 有個知識家也和wiki一樣 https://goo.gl/kIytlK
難道真的是我們課堂PPT出錯@@??
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