スペクトル分解 ぶんかいじゃありませんでした
supekutorubunkaijārimasendeshita

Noun
Desu Copula

The polite, past negative form of スペクトル分解

1. Was not spectral decomposition.; Was not a spectral decomposition.

Past/Perfective
Negative
Polite
Terminal Form
Mathematics