How to use atan : Tan ATan « Math « C / ANSI-C

1. C / ANSI-C
2. Math
3. Tan ATan

How to use atan

#include <math.h>
#include <stdio.h>

int main(void) 
{
  double val = -1.0;

  do {
    printf("Arc tangent of %f is %f.\n", val, atan(val));
    val += 0.1;
  } while(val<=1.0);

  return 0;
}

           
       

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