功能说明：

次组件提供的功能有二：

1、解析出数学表达式中的参数

2、计算数学表达式



此组件不但可以解析和计算数学表达式，还提供了一系列的数学基本函数，可应用于表达式中一块处理。提供的数学基本函数有：将值舍入到最接近的整数 rount(x)、向下取整函数 int(x)、向上取整 ceiling(x)、求两个数中最大数的函数 max(a,b)、求两个数中最小数的函数 min(a,b)、幂函数 pow(x,n)、求平方根的函数 sqrt(x)。

下载地址：http://www.qiusuo365.com/qiusuo365/viewthread.php?tid=2422&extra=page％3D1-Functional Descr iption : sub-components provided by the two functions : one, to figure out the mathematical expression of two parameters. calculate mathematical expression of this component will not only analytical and computational mathematical expression, but also provided a series of basic math functions, expression can be applied to a handle. The basic function of mathematics : the value of rounding to the nearest integer rount (x), downward for the entire function int (x), up from the entire ceiling (x), 2 for the largest number of the number of function max (a, b), 2 for the smallest number of the number of function min (a, b), power function pow (x, n), for the square root function sqrt (x). Download Address : http :// www.qiusuo365.com/qiusuo365/viewthread . php tid = 24