enumerate
vt.枚举;计数(count, numberate)
Sam can enumerate all the Presidents of the United States.
山姆可以列举出所有的美国总统。
calculate
vt.计算(count),估计;计划
Children calculate with the help of their fingers when they are learing counting.
孩子们在学习算术时要借助手指计算
clalculus
n.微积分学
percentage
n.百分数,百分率,百分比
The percentage of unskilled workers is small.
技术不熟练的工人占得比例很小。
proportion
n.比例;均衡;面积;部分
We do not always find visible happiness in proportion to visible virtue.
我们发现,可见的幸福与可见的美德不一定成比例。
exponent
n.指数(index)
derivative
n.导数
The limiting value of the ratio of the change in a function to the corresponding change in its independent variable is called derivative.
一个等式中,自变量变化量与因变量变化量的比值的极限叫做导数。
power
n.乘方;幂
arc
n.弧,弓,拱
infinity
n.无限,无穷大