Discrete Mathematics

Method of Undetermined Coefficients. If has precision n, then it is exact for the monomials . Suppose the nodes are no longer fixed. We start with n+1 equations, for our 2n+1 unknowns and . Let so we have 2n+2 (nonlinear) equations and unknowns. If it has a solution, then it has precision 2n+1. ................
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