部分 ぶぶん行列 ぎょうれつじゃありませんでした
bubungyōretsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 部分行列

1. Was not a partial matrix.; It was not a partial matrix.

Past/Perfective
Negative
Polite
Terminal Form
Mathematics