如何使用梯形法计算定积分,其中a = 0,b = 1,被积函数为sin(x) e^x,积分区间等分

%matlab程序format longy=inline('sin(x)。*exp(x)');quad(y,0,1)ans = 0。909330672042376#include#include"math。h"#define exp 2。718281828void main(){ long int n=1000,i; float temp,sum=0,delta=1。0/n; for(i=0;i