..thanks - however, I put the "use bignum => 50" line of
code before the "print hex("0xbe91cfb586466d02"),"\n";" statement and it still didn't give me the precision that the -Mbignum=a,50 gave me - I must be missing something - does the "print hex" have to be somehow part of the "use bignum" option? ..again, thanks for any insights...