次元 じげん高速 こうそくフーリエ変換 へんかんであれば
nijigenkōsokufūriehenkandeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 二次元高速フーリエ変換

1. If it were a two-dimensional fast Fourier transform.; Were it a two-dimensional fast Fourier transform.

Ba Conditional
Mathematics