词组、短语、俚语及习惯用语• calculus of contingency
列联计算。• calculus of differences
差分法。• calculus of finite difference
差分学。有限差分运算。• calculus of nature inference
自然推理演算。• calculus of observations
观测演算。• calculus of probability
概率演算。• calculus of several variables
多变量微积分。• variations in averages
平均数变动额。• variations of an admissible family of arcs
适用弧族的变分。
calculus of variations
calculus-of-variations的词性：
n.（名词）
1. Mathematical analysis of the maxima and minima of definite integrals, the integrands of which are functions of independent variables, dependent variables, and the derivatives of one or more dependent variables.
积分变量：数学分析中定积分的上限和下限，其被积函数是一些独立变量、相关变量以及一个或多个独立变量的转化量的函数
