$num2 is a float with rounding error after the multiplication.

I am not so sure about that.

print "1989.9999999999998" + 0 ; # 1990

The 'target form' is decimal string.

From perlnumber Target form: If the source number can be represented in the target form, that representation is used.

Also: When a numeric value is passed as an argument to such an operator, it will be converted to the format understood by the operator.. My assumption is that this counts for  + - / * etc applied to the decimal string and eventually also for eq.

In reply to Re^3: number comparison with a twist by Veltro
in thread number comparison with a twist by anotherguest

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