# TAN

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the tangent of the specified angle.

## Syntax

TAN(*angle*)

## Arguments

This function can take any real number as an argument. The *angle* argument is the angle in radians for which you want the tangent.

## Remarks

If the angle is in degrees, multiply it by PI/180 to convert it to radians.

## Data Types

Accepts numeric data. Returns numeric data.

## Examples

`TAN(B3)`
`TAN(R3C2)`
`TAN(45*PI()/180)` gives the result 1
`TAN(RADIANS(20))`

## Version Available

This function is available in product version 1.0 or later.

## See Also

[ATAN](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionATAN) \| [ATAN2](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionATAN2) \| [COS](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionCOS) \| [SIN](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsRtoS/FunctionSIN) \| [Math and Trigonometry Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsmathtrig)