1 SHARE2;BFFAC BFZETA contains cheap and dirty BFLOAT versions of the
2 Factorial (shifted Gamma) and Riemann Zeta functions. Both BFFAC
3 and BFZETA take a 2nd argument which is how many digits to retain and
4 return, but it's a good idea to request a couple of extra.
6 BFPSI(n,z,fpprec) gives polygammas of real arg and integer order.
7 For digamma, BFPSI0(z,fpprec) is more direct. Note -BFPSI0(1,fpprec)
8 provides BFLOATed %GAMMA.
10 There is also CBFAC(z,fpprec) for factorial of complex z, which is
13 BURN(n) is a way to get isolated bernoulli numbers faster than BERN(n)
16 There is also the Hurwitz zeta fcn BHZETA(s,h,fpprec), which gives
17 fpprec digits of sum((k+h)^-s,k,0,inf). --RWG