:

floor(4.7*100) = 469

Added by: ~organmusic, 2015 IV 14

Added by: ~organmusic, 2015 IV 14

There is some problem:
floor(470) = 470
but
floor(4.7*100) = 469

Added by: tomek, 2015 IV 14

Because 4.7 is not 4.7, this has been mentioned many times here:
http://en.wikipedia.org/wiki/Floating_point#Accuracy_problem s