離散 りさんフーリエ変換 へんかんじゃなかったです
risanfūriehenkanjanakattadesu

Noun
Desu Copula

The polite, past negative form of 離散フーリエ変換

1. Wasn't a discrete Fourier transform.

Past/Perfective
Negative
Polite
Casual Register
Mathematics