Hello my problem is with a bigger equation but the problem is bassicly this :
sage: var('x','y', domain=real)
sage: assume(x>0)
sage: assume(y>0)
sage: e = sqrt(1/y^2)y
sage: e.simplify_full()
1
sage: e = sqrt(x/y^2)y
sage: e.simplify_full()
y*sqrt(x/y^2)
Anyone explain me how to get just "x" and why it doesn't do directly? Thanks