C library function hypot() usage and example

C Standard Library <math.h>

The hypotenuse is the longest side of a right-angled triangle. When the other two sides are provided, the hypot() function is used to calculate the length of the hypotenuse of a right-angled triangle.

hypot() function prototype

double hypot(double p, double b);

In mathematics, h = √(p2+b2) is equivalent to the C language programming h = hypot(p, b);.

The hypot() function inmath.h 　Defined in the header file

Example: C hypot() function

#include <stdio.h>
#include <math.h>
int main()
{
　　　　double p, b;
　　　　double hypotenuse;
　　　　p =　5.0;
　　　　b =　12.0;
　　　　The hypotenuse is calculated as hypot(p, b);
　　　　printf("hypot(%.2lf, %.2lf) = %.2lf", p, b, hypotenuse);
　　　　return 0;
}

Output Result

hypot(5.00,　12.00) =　13.00

C Standard Library <math.h>