Function: mfperiodpolbasis
Section: modular_forms
C-Name: mfperiodpolbasis
Prototype: LD0,L,
Help: mfperiodpolbasis(k,{flag=0}): basis of period polynomials for weight k.
If flag=1 or -1, basis of odd or even period polynomials.
Doc: Basis of period polynomials for weight k. If flag=1 or $-1$, basis of
odd or even period polynomials.
\bprog
? mfperiodpolbasis(12,1)
%1 = [x^8 - 3*x^6 + 3*x^4 - x^2, x^10 - 1]
? mfperiodpolbasis(12,-1)
%2 = [4*x^9 - 25*x^7 + 42*x^5 - 25*x^3 + 4*x]
@eprog