So to get exact results, do all your calculations in integers, and divide by 100 for display purposes.

Or, more transparently: use bignum - for example:

perl -Mbignum -e "print (100.10-100);"

gives the correct answer 0.1

s^^unp(;75N=&9I<V@`ack(u,^;s|\(.+\`|"$`$'\"$&\"\)"|ee;/m.+h/&&print$&

In reply to Re^2: Math 101 anyone? by muntfish
in thread Math 101 anyone? by smcone

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