implemented a solution to a problem in arithmetic precision handeling in gmp - but the results are rather strange . as a part of troubleshooting I was wondering whether there is any other package hich woudl allow similar operatiosn as gmp in R. I would need something like chooseZ and multiplication of numbers larger than 2^64 - jsu to make sure that I am not having an error somewhere in this step of my script
need to compute nubers like
choose(2450,765) then multiply it with a floating point number like 0.0034
the log solution is not really working becasue the expression can aslo be
sum for 2 to k of (k* k*choose(1800,800)*0.089)
so Iw ould need a wauy to sum over (k kchoose(1800,800)*0.089)