算法分析中的辛甫生公式和梯形公式，首先， 找到表达式中的共同点----一个函数。编写该函数。然后，分别编写两公式的表达式。-Algorithm analysis辛甫Health formula and trapezoid formula, first of all, to find expression in common---- a function. The preparation of the function. Then, the two were prepared formula ex