定积分C语言用下列三种方法实现进行积分数值计算 1.矩形法 2.变步长梯形法 3.龙贝格法用正弦函数输出 答案 #include "stdio.h"#include "math.h"double f (double x){return sin(x);}double Jifen(double a,double b){double h;double fx;double x;int i;double sum=0;h...
scanf("%lf",&b); printf("sin(x)在区间[%.2f,%.2f]上的积分为%f\n",a,b,integral(a,b,sin)); printf("e^x在区间[%.2f,%.2f]上的积分为%f\n",a,b,integral(a,b,exp)); printf("cos(x)在区间[%.2f,%.2f]上的积分为%f\n",a,b,integral(a,b,cos)); return 0; } double int...