I am struggling to find a way of solving the following equation (simplified example) ``` f = x+1 g = 2*x+1 expr = a*f + b*g - 1 solve(expr, (a, b)) ``` I would like to have `a=2`, `b=-1` which make `expr` identically zero.
I am interested in polynomials with higher powers: at the moment, I derive with respect to x, subs 0 for x, accumulate the result as column in a matrix and solve the linear problem associated. This method works for univariate polynomials, but it become impractical for multivariate linear systems, which is my ultimate goal, because of the need to derive with respect to all mixed terms x^m*y^n. (I also could not find a way of collecting the coefficients of the terms x^m*y^n.) Is there a way to solve these linear problems? Thank you, michele -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/e6b86d1d-fb00-4022-8f25-f80ba0404d2c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
