# Difference between revisions of "ApCoCoA-1:Fn.Root"

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## Latest revision as of 10:04, 7 October 2020

This article is about a function from ApCoCoA-1. |

## Fn.Root

Returns the `N`-th root of a given value.

### Syntax

Fn.Root(X:RAT,N:INT):RAT

### Description

This funcion returns the `N`-th root of `X` rounded to

the current global accuracy.

@param

*X*The value of which to take the`N`-th root.@param

*N*The degree of the root to be taken.@return Returns the

`N`-th root of`Val`rounded to the current global accuracy.

#### Example

Fn.SetAccuracy(20); R := Fn.Root(8, 3); Dec(R, 40); 2 -------------------------------

#### Example

Fn.SetAccuracy(20); R := Fn.Root(-8, 3); Dec(R, 40); -2 -------------------------------

#### Example

Fn.SetAccuracy(20); R := Fn.Root(9, 3); Dec(R, 40); 2.08008382305190411453 -------------------------------