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ACOS Function in C

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The C ACOS Function is a C Math Library Function. It used to calculate Trigonometry Arc Cosine value for the user-specified expression or value. The syntax of the acos in C Programming is

double acos(double number);

TIP: Please refer to C COS Function article to calculate the Cosine value of a specified expression.

ACOS Function in C Example

The acos Function in the math library helps you to find the trigonometry Arc Cosine for the specified values.

This program, ask the user to enter his/her own value, and then it will find the arc cosine value of the user entered one

/* Example for ACOS Function in C Programming */

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

int main()
{
  double acosValue, number;

  printf(" Please Enter the Floating Value between -1 to 1 :  ");
  scanf("%lf", &number);
  
  acosValue = acos(number);
  
  printf("\n The Arc Cosine value of %lf = %f ", number, acosValue);
  
  return 0;
}

OUTPUT

ACOS Function in C Programming 1