# HYPOT function

## Description

HYPOT(x,y) returns the square root of the sum of squares of its arguments x and y. This corresponds to calculating the length of the hypotenuse of a right-angled triangle.

The HYPOT function is defined as:

$$ r = \sqrt { x^2 + y^2 } $$

## Calculator

## Related functions

## Recommended book

## Trigonometry: A Complete Introduction

Hugh Neill

Buy from Amazon

This book covers all areas of trigonometry including the theory and equations of tangent, sine and cosine, using trigonometry in three dimensions and for angles for any magnitude, related to triangles. Everything you will need is here in this one book. Each chapter includes not only an explanation of the knowledge and skills you need, but also worked examples and test questions.