|Bill Allombert on Wed, 26 Mar 2014 21:29:01 +0100|
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|RgXn class function for power series|
Dear PARI developers, I have added support for a new class of functions (RgXn) for computation in Rg[X]/(X^n). This is useful to implement operation on power series. So far the following functions are available: GEN RgXn_eval(GEN Q, GEN x, long n); GEN RgXn_mul(GEN f, GEN g, long n); GEN RgXn_powers(GEN f, long m, long n); GEN RgXn_red_shallow(GEN a, long n); GEN RgXn_reverse(GEN f, long e); GEN RgXn_sqr(GEN f, long n); GEN RgXnV_red_shallow(GEN P, long n); GEN RgX_RgXn_eval(GEN Q, GEN x, long n); GEN RgX_RgXnV_eval(GEN Q, GEN x, long n); See the documentation for detail. (RgXn_reverse is an implementation of serreverse using Newton algorithm). Cheers, Bill.