htswanalysis/MACS/lib/gsl/gsl-1.11/doc/examples/sum.out

   1 term-by-term sum =  1.5961632439130233 using 20 terms
   2 term-by-term sum =  1.5759958390005426 using 13 terms
   3 exact value      =  1.6449340668482264
   4 accelerated sum  =  1.6449340668166479 using 13 terms
   5 estimated error  =  0.0000000000508580
   6 actual error     = -0.0000000000315785