noun
magic square matrix
Technical computing term for a matrix that forms a magic square, where each row, column, and diagonal sums to the same value.
魔方陣行列を生成するアルゴリズムを実装した。
I implemented an algorithm to generate a magic square matrix.
Compound of 魔方陣 (magic square) and 行列 (matrix). The exact historical derivation is uncertain; the term is a modern technical coinage.