I would like to format the solution given by maple.
I have the answer given by a paper and I would like to reproduce the same formula.
I have the expression :
I would like to assume deltaa = a1-a2 and sigmaa = a1+a2.
The issue is that algsubs(deltaa = a1-a2, expr), my a1+a2 is replaced by deltaa+2*a2 and same for algsubs(sigmaa = a1+a2, expr), so i can't have sigmaa*ln(...) + deltaa*ln(...).
And all my squares are developed, for example I have : sqrt(1/4*a1^2+1/4*a2^2+1/2*a1*a2+...)
I can't put them in canonical form (1/2*a1+1/2*a2)^2 to get (1/2*sigmaa)^2.
Sorry for my english,
If you know how to do, i would be really grateful !