Tan()

tan(<number>[, <units>])

Returns the tangent of <number> where <number> is expressed in <units>. <units> may be 'radians', 'degrees', or 'gradians' or just the first letter of any of these. By default, <units> is radians.

In a circle, there are 2*pi() radians, 360 degrees, and 400 gradians.

Example

> say tan(0)

You say, "0"

> say tan(1)

You say, "1.557408"

> say tan(fdiv(pi(),4))

You say, "1"

Related Topics

acos(), asin(), atan(), cos(), pi(), sin()