coefficient matrix
Technical term in linear algebra and computing; a matrix whose entries are the coefficients of a system of linear equations.
To solve a system of linear equations, first create the coefficient matrix.
General term for 'matrix'; 係数行列 specifically refers to the matrix of coefficients.
Augmented coefficient matrix, which includes the constant terms as an extra column.
Compound of 係数 (coefficient) and 行列 (matrix). A straightforward technical term.