significant digits in computationsby daemonchild (Acolyte)
|on Jun 12, 2000 at 11:22 UTC||Need Help??|
daemonchild has asked for the wisdom of the Perl Monks concerning the following question:
i have written a script that does some price calculations based on input thru drop down menus (CGI). It all works, but I am running into problems maintaining the correct number of significant digits in calculations.
for example, trailing zeros are just obliterated, eg
2*120.00 = 240
and decimal calculations often end up with 4 or 5 trailing decimals. is there an easy way to specify 2 trailing decimal places? or am i relegated to the following ugly hacks ...