差さ分ぶん商しょう

noun

difference quotient; divided difference

Mathematical term used in calculus and numerical analysis. Refers to the expression (f(x+h)-f(x))/h or its discrete analogue.

• 差さ分ぶん商しょうは微び分ぶんの定てい義ぎに現あらわれる。

  The difference quotient appears in the definition of the derivative.

• 数すう値ち解かい析せきでは差さ分ぶん商しょうを用もちいて近きん似じ微び分ぶんを行おこなう。

  In numerical analysis, divided differences are used for approximate differentiation.