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Re: Inverse Tangent function


Boen S. Liong wrote:
> Let w1 = tan-1(x)  i.e. inverse tangent of x or tan(w1) = x
<snip>
In Mathematica, the tangent function is written *Tan* and the inverse 
tangent function is *ArcTan*, so you would write

w1 = ArcTan[x] or x = Tan[w1]

(Note the /square/ brackets that enclose the argument list.)

Also, you could have a look at some simplification function such as 
Simplify or TrigExpand as well as Solve and Reduce.

-- 
Jean-Marc


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