Hi,
I would like to know if it is possible to make Maple do the following:
Suppose you have a function dx:=1/((x1-x3)^2+(x2-x4)^2) and we want diff(dx,x1), is there a way to obtain: *-(2*x1-2*x3)/((x1-x3)^2+(x2-x4)^2)^2 instead of -1/(x1^2-2*x1*x3+x3^2+x2^2-2*x2*x4+x4^2)^2*(2*x1-2*x3)?
Basically how to keep the denominator in a fatorized form and not expanded?
Thanks.