対たい称しょう行ぎょう列れつ

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Meanings

1

noun

symmetric matrix

mathematics

A square matrix that is equal to its transpose. Used in linear algebra and related fields.

対vis-a-vis, opposite, even

称appellation, praise, admire

行going, journey, carry out

列file, row, rank

転てん置ち行ぎょう列れつ
転置行列 is the transpose of a matrix, while 対称行列 is a matrix that equals its own transpose.
正せい方ほう行ぎょう列れつ
正方行列 is any square matrix; 対称行列 is a special case where the matrix is symmetric across the main diagonal.

Compound of 対称 (symmetry) and 行列 (matrix). The term is a direct calque from English 'symmetric matrix'.