斜交 しゃこう座標 ざひょうじゃありませんでした
shako uza hyōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 斜交座標

1. Was not oblique coordinates.; Was not a skewed coordinate system.

Past/Perfective
Negative
Polite
Terminal Form
Mathematics