[Gambas-user] trigonometric function

[piet at ...3034...]

Hi, 

I just got a mathematic problem: 

I need the angle alpha and
x and y are given. 

tan(alpha) = x / y 

so alpha = tan^-1(x/y) 

As I
put tan^-1(x/y) in my own calculator, it works. 

But how do I express
this in Gambas? 

(1 / (tan(x / y)) does'nt return me the same awnser..)


Thanks for help 

Piet