na-adjective, noun which may take the genitive case particle 'no', noun
correct; proper; regular; systematic
Describes something that follows established rules, standards, or procedures; often used in formal or technical contexts.
正則な手続きを踏む必要がある。
We need to follow the proper procedures.
This expression is not grammatically regular.
na-adjective, noun which may take the genitive case particle 'no'
invertible (matrix); holomorphic
Mathematics term; 正則行列 is an invertible matrix, 正則関数 is a holomorphic function.
This matrix is invertible, so its inverse exists.
Holomorphic functions are fundamental objects in complex analysis.
To carry out the procedure in the proper, regulated way.
This matrix is invertible.
正則 means following the standard rule or form, the direct opposite of 変則, which means deviating from it.
regular expression
holomorphic function