Код: Выделить всё
#define PI
float form(int k, float, float, float);
main()
{
float x;
int k=1;
float e;
float s=0;
printf("Enter the X:\n");
scanf("%f", &x);
while (x<-0 || x>PI)
{
printf("Error\n");
scanf("%f", &x);
}
printf("\nEnter the e\n");
scanf("%f", &e);
while (e<0)
{
printf("Error");
scanf("%f", &e);
}
printf("%f \n", form(k,s,x,e));
getch();
}
float form(int k, float y, float x, float e)
{
float a;
a=cos((2*k-1)*x)/(2*k-1) ;
y=y+a;
printf("%f\n",y);
if (a<e)
return(y);
else
return(form(k+1,y, x, e));
}
