C Program for Euler Method

#include <stdio.h>

#include <conio.h>

float f(float x,float y)

{return x*y;}

void main()

{

  float x0,y0,xn,yn,h;

  printf("Enter x0, y0 and h: ");

  scanf("%f%f%f",&x0,&y0,&h);

  printf("Enter xn: ");

  scanf("%f",&xn);

  do

  {

    yn=y0+h*f(x0,y0);

    x0=x0+h;

    y0=yn;

  }while(x0<xn);

  printf("y(%0.2f) = %0.4f Ans",xn,yn);

  getch();

}

OUTPUT: