ATAN2 Function in C

The ATAN2 Function in C programming is one of the Math Library Function, used to calculate the Trigonometric Arc Tangent of y/x. Or you can say, it is used to returns the angle in radius from the X -Axis to the specified point (y, x). In this article we will show you, How to use this ATAN2 function with example.

TIP : Please refer TAN Function article to calculate the Tangent value, and ATAN Function to calculate the Arc Tangent Value of the specified expression.

Syntax of ATAN2 Function in C

The basic syntax of the atan2 in C Programming is as shown below.

double atan2(double y, double x);

ATAN2 Function in C Example

The atan2 Function in math library helps you to find the trigonometric Arc Tangent of multiple parameters. This C program, ask the user for two values, and then find the arc tangent value of those two parameters

/* Example for ATAN2 Function in C Programming */

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

int main()
{
  double atan2Value, X, Y;
  printf("\n Please Enter the Values for Y and X to calculate Arc Tangent of Y/X : \n ");
  scanf("%lf %lf", &Y, &X);
  
  atan2Value = atan2(Y, X);
  
  printf("\n The Arc Tangent value of %lf and %lf = %f ", Y, X, atan2Value);
  
  return 0;
}

OUTPUT

Thank You for Visiting Our Blog