tan

Type

function

Summary

Returns the tangent of an angle (in radians).

Syntax

the tan of <angleInRadians>

tan(<angleInRadians>)

Description

Use the tan function to find the tangent of an angle.

The tan function repeats every 2 ** *pi radians: tan(x) = tan(x + 2 * pi), for any value of x.

If the angleInRadians is an odd multiple of pi/2, the tangent is infinite (undefined). The tan function instead returns a very large number for such angles, due to internal number handling.

The tan function requires its input to be in radians. To provide an angle in degrees, use the following custom function:

    function tanInDegrees angleInDegrees
        return tan(angleInDegrees * pi / 180)
    end tanInDegrees

Parameters

Name	Type	Description
angleInRadians	number	A positive or negative number, or an expression that evaluates to a number.

Examples

put tan(pi/4) -- returns 1

put the tan of tMyAngle

Related

glossary: radian, custom function, return, degree

constant: pi

control structure: function

Compatibility and Support

Introduced

LiveCode 1.0

OS

mac

windows

linux

ios

android

Platforms

desktop

server

mobile