C fabs() Function

C fabs() Function

The fabs() function returns the absolute value of the given number.

This function is defined in <math.h> header file.

Note: The abs() is used to calculate the absolute value for integer type numbers whereas fabs() are used for floating type numbers.

Example

C Compiler
#include <stdio.h> #include <math.h> int main() { printf("fabs(-2.45) = %.2lf\n", fabs(-2.45)); printf("fabs(2.45) = %.2lf", fabs(2.45)); return 0; }

Syntax

double fabs(double x)

Parameter Values

ValueTypeExplanation
xRequiredSpecifies a floating point value.

Return Value

ValueExplanation
NumberReturns the absolute value of the given number.

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