[gecode-users] Trigonometric functions in Gecode

[Jonathan Skovhus Andersen]

Hello,

I'm a beginner in Gecode, so there is something that I don't quite
understand. First of all I understand that Gecode only uses integers. But in
my implementation I have to use arcus tangent which gives me some problems.
I have to following line in my code:

*for(int i = 0; i < p.size(); i++)*
* rel(*this, angle[i] ==
180/3.1415*atan((sqrt(sqr(coordinatesArray[i][0]-x)+sqr(coordinatesArray[i][1]-y))/constantsArray[2][0])));
*

Which gives me the following error:

*Error 12 error C2665: 'atan' : none of the 3 overloads could convert all
the argument types ...source.cpp 107 TSP*

Is there any way to work around this? I don't really have any ideas...

*Regards,*
*Jonathan Skovhus Andersen*
*Aalborg University*
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