VB.NET Language in a Nutshell

Class

System.Math

Syntax

Tan ( a )

a (required; Double)

An angle in radians

Return Value

A Double containing the tangent of an angle

Description

Returns the ratio of two sides of a right angle triangle

Rules at a Glance

• The returned ratio is derived by dividing the length of the side opposite the angle by the length of the side adjacent to the angle.

• This is a Shared member, so it can be used without creating any objects.

Programming Tips and Gotchas

• You can convert degrees to radians using the following formula:

  radians = degrees * (pi/180)

• You can convert radians to degrees using the following formula:

  degrees = radians * (180/pi)

See Also

Cos Function, Sin Function