Some new GP features
hypergeom
hypergeom now supports power series:
? hypergeom([1,1,1],[5/3,5/3],z+O(z^5))
%57 = 1+9/25*z+81/400*z^2+6561/48400*z^3+59049/59290
? hypergeom([1,1,1],[5/3,5/3],1/2)
%58 = 1.2579176749481097328724460713125550477
? hypergeom([1,1,1],[5/3,5/3],1/2+z+O(z^5))
%59 = 1.257917674948109733+0.7611467927103072052*z
% +0.7887370510268457097*z^2+1.007980535530049765*z^
% +1.437897250391074849*z^4+O(z^5)