#include<stdio.h>
#include<math.h>
#define maxsize 100
int main(void)
{
    double a,b,step,x[maxsize],y[maxsize];
    double f1(double x,double y);
    double f2(double x);
    int i,n;
    printf("please input step=\n");
    scanf("%lf",&step);
    printf("please input a= and b=\n");
    scanf("%lf %lf",&a,&b);
        n=(int)((b-a)/step);
    for(i=0;i<=n;i++)
        x[i]=a+i*step;
    y[0]=0;
    for(i=0;i<=n-1;i++)
    {
        y[i+1]=y[i]+step*f1(x[i],y[i]);
    }
    for(i=0;i<=n;i++)
    {
        printf("x[%d]=%lf,y[%d]=%lf,f2=%lf",i,x[i],i,y[i],f2(x[i]));
        printf("\n");
    }
    return 0;
}
double f1(double x,double y)
{
    double z;
    z=622*sin(314*x)-20*y;
    return z;
}
double f2(double x)
{
    double z;
    z=48827*(exp(-20*x)+10*sin(314*x)/157-cos(314*x))/24749;
    return z;
}
第一个输入step=0.001
第二个输入a=0 b=0.01
问题是答案的y[0]=0是正确的
但是y[1]的值应该等于y[2]的值，y[2]=y[3]此时的值，一次类推，y[9]的值应该是y[10]的值，
谁能帮我解决一下啊