Integral crash

[Albert Chan]

Hi, parisse

I downloaded XCas 1.9.0-31 (mingw), it work! Thanks!
XCas 32-bits version is still 1.9.0-22 though (when will it catch up 64-bits versions?)

Bonus, result is a lot less messy than expected

XCas> 2*cos(pi/12)* ∫(cos(pi/12-x) / (cos(x)*cos(pi/6-x)), x = 0 .. pi/12)

\(\displaystyle -
\frac{\left(\sqrt{2}+\sqrt{6}\right) \left(-\sqrt{2} \ln \left(\frac{\sqrt{2}}{2}\right)+\sqrt{2} \ln \left(\frac{\sqrt{6}}{2}\right)+\sqrt{6} \ln \left(\frac{\sqrt{2}}{2}\right)-\sqrt{6} \ln \left(\frac{\sqrt{6}}{2}\right)\right)}
{4}\)

XCas> simplify(ans())      → (-ln(2)+ln(6))/2
XCas> simplify(ans())      → ln(3)/2

Also, plotfunc for plot fixed the color/legend issues.
What is the difference between the two?