正規 せいき直交 ちょっこう けいじゃありませんでした
seiki cho' kōkeijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 正規直交系

1. It was not orthonormal.; It wasn't a standard orthogonal system.

Past/Perfective
Negative
Polite
Terminal Form