# ApCoCoA-1:Fn.Tan

From ApCoCoAWiki

## Fn.Tan

Returns the tangent of a given value.

### Syntax

Fn.Tan(X:RAT):RAT

### Description

This function returns the tangent of `X` rounded to the current

global accuracy.

@param

*X*Value of which to compute the tangent.@return The tangent of

`X`rounded to the current global accuracy.

#### Example

Fn.SetAccuracy(20); R := Fn.Tan(1); Dec(R, 30); 1.55740772465490223051 -------------------------------