Pedro A. García-Sánchez
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Pedro A. García-Sánchez
`simplify((x^2-x*y)/(x*y-y^2))` outputs `x (x - y) / (-y^2 + x y)` while it should probably be `x/y`. However if we factor the numerator with `factor((x^2-x*y))` we obtain `x (x -...