Search Results for: Poppy straw not cut
since it doesn't use global information, it can be a very bad fit overall just like taylor series. i had mathematica create an approximation of the form $(a_ + a_ x + a_ x^ ) / ( + a_ x)$ with padeapproximant[x^( / ), {x, , { , }}], which is much better than a simple rd degree polynomial, but still not
have to decide how you will measure error. if you just look at maximum difference between the value of the function and it's approximation, then you are doing "uniform" or "minimax" approximation, which is usually more difficult than least-squares approximation. as you mentioned, pade approximation is not...
https://math.stackexchange.com/questions/325582/finding-good-approximation-for-x1-2-4