Simplify rational expression to polynomial

asked 2022-05-18 14:53:38 +0200

Rodrigo Raya gravatar image

I'd like to check my computations for rational polynomial equations with sage. Here is an equation that gives the general form of a parabola with respect to a directrix and focus:

(ax+by+c)^2/(a^2+b^2) = (x-f1)^2 + (y-f2)^2

I'd like to obtain from this rational expression a polynomial expression in x,y. Is there a way to do this kind of computation automatically in Sage?

edit retag flag offensive close merge delete



Take the numerator of the difference.

FrédéricC gravatar imageFrédéricC ( 2022-05-18 21:17:20 +0200 )edit