noun
partial derivative
Mathematical term for the derivative of a multivariable function with respect to one variable while holding others constant.
偏導関数を計算して、関数の変化を調べる。
Calculate the partial derivative to examine the change of the function.
導関数 is the general term for derivative, while 偏導関数 specifically refers to partial derivatives in multivariable calculus.
Compound of 偏 (へん, 'partial') + 導関数 (どうかんすう, 'derivative'). The term is a direct calque from English 'partial derivative'.