数值分析实验c语言版
复合梯形法求积公式(f(x)=sinx/x) #include ""
#include ""
void main()
{
int k;
double a,b,n,h,x;
double f,f1,f2,T,F=0.0;
printf("请输入a b n :");
scanf("%lf%lf%lf",&a,&b,&n); h=(b-a)/n;
for(k=1;k
{
x=a+k*h;
f=sin(x)/x;
printf("\nf=%0.7f",f);
F+=f;
printf("\nF=%0.7f",F);
}
if(a!=0.0)
f1=sin(a)/a;
else(f1=1.0);
printf("\nf1=%0.7f",f1);
f2=sin(b)/b;
printf("\nf2=%0.7f",f2);
T=0.5*h*(f1+2*F+f2);
printf("\nT=%0.7f",T);
}
复合辛普森公式(f(x)=sinx/x) #include ""
#include ""
void main()
{
int k;
double a,b,n,h;
double x,f,f1,f2,F1=0.0,F2=0.0,S=0.0;
printf("请输入a b n :");
scanf("%lf%lf%lf",&a,&b,&n); h=(b-a)/n;