noun
Jacobian; Jacobian determinant
Mathematical term for the determinant of the Jacobian matrix, used in multivariable calculus and differential equations.
変数変換の際には、関数行列式を計算する必要がある。
When changing variables, it is necessary to compute the Jacobian determinant.
Compound of 関数 (function), 行列 (matrix), and 式 (expression/formula). The term is a direct translation of the mathematical concept 'Jacobian determinant'.