int main()
{
double ang = 90.0 * pi/180.00; /* 90 Degrees in Radians */
printf("cotan of 90 degrees: %0.4f\n", ctn(ang) );
printf("cotan of 45 degrees: %0.4f\n", ctn(ang/2) );
return 0;
}
int main(void)
{
int i;
int j = 0;
j = ctn( i );
printf("Enter a number whose triangular number you want to obtain:");
scanf("%i", &i);
printf("Triangular Number of %i is %i\n", i, j);
return 0;
}
