[sage-support] Re: LaurentSeries expansion

2008-01-15 Thread William Stein
On Jan 15, 2008 8:46 AM, Martin Albrecht [EMAIL PROTECTED] wrote: Hi everybody, in a nutshell I want to compute something like this MAGMA session in Sage: %magma Pa,b,c,d := PolynomialRing(GF(127),4); I := idealP|c^3-b*d^2,b*c-a*d,b^3-a^2*c,a*c^2-b^2*d; St := HilbertSeries(I); S; Lu :=

[sage-support] Re: LaurentSeries expansion

2008-01-15 Thread Martin Albrecht
It might be a lot easier to help if you gave the rational function. Depending on how complicated the denominator is, you basically just have to compute the Taylor series of the rational function, by differentiation and evaluation (using Taylor's formula), i.e., kind of like this is doing,

[sage-support] Re: LaurentSeries expansion

2008-01-15 Thread William Stein
On Jan 15, 2008 10:44 AM, Martin Albrecht [EMAIL PROTECTED] wrote: It might be a lot easier to help if you gave the rational function. Depending on how complicated the denominator is, you basically just have to compute the Taylor series of the rational function, by differentiation and