Math.tan example is poor.

[kevin_schmidt]

The example code for Math.tan at:

 

http://www.w3schools.com/jsref/jsref_tan.asp

 

uses:

Math.tan(90)

 

as an example, however Math.tan takes radians, not degrees. Very rarely would you specify 90 radians. I would recommend this be something like:

 

Math.tan(Math.PI)

 

or something similar as well as adding a note mentioning it takes radians.