What is hypot() in D?

Overview

The longest side of a right-angled triangle, and the side opposite to the right angle, is known as the hypotenuse in geometry.

The mathematical formula to calculate the hypotenuse’s length is known as the Pythagorean theorem and is as follows:

hypotenuse = sqrt( length^2 + base^2 )

Figure 1 shows the visual representation of the hypot() function:

Note: We need to import std.math in our code to use the hypot() function. We can import it like this:
import std.math

Syntax

hypot(length, base)

Parameters

This function requires length and base as parameters.

Return value

This function returns the hypotenuse of the right-angled triangle. The triangle’s length and base are passed as parameters.

Example

The code below shows the use of the hypot() function in D:

import core.stdc.stdio;
import std.stdio;
//header required for function
import std.math;
int main()
{
    //positive: length     positive: base
    writeln ("The value of hypot(10,10) : ",hypot(10,10));
    //positive: length     negative: base
    writeln ("The value of hypot(0.25,-2) : ",hypot(0.25,-2));
    //negative: length     positive: base
    writeln ("The value of hypot(-10,2) : ",hypot(-10,2));
    //negative: length     negative: base
    writeln ("The value of hypot(-0.5,-1) : ",hypot(-0.5,-1));
    // few exceptional outputs
    writeln ("The value of hypot(real.infinity,real.infinity) : ",hypot(real.infinity,real.infinity));
    writeln ("The value of hypot(-real.infinity,-real.infinity) : ",hypot(-real.infinity,-real.infinity));
    writeln ("The value of hypot(real.nan,real.nan) : ",hypot(real.nan,real.nan));
    writeln ("The value of hypot(-real.nan,-real.nan) : ",hypot(-real.nan,-real.nan));
    return 0;
}