That's what I thought, too, but it doesn't appear to be the case:

$ perl -le '$a = 36.8; $b = 36.6; print "true\n" if $a >= ($b + 0.2);'
# Prints nothing, just as poster showed

$ perl -le '$a = 36.8; $b = 36.6; $c = $b + 0.2; print $c;'
36.8

$ perl -le '$a = 36.8; $b = 36.6; $c = $b + 0.2; print $a;'
36.8

$ perl -le '$a = 36.8; $b = 36.6; $c = $b + 0.2; print $b;'
36.6

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"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.

In reply to Re^2: float values and operators by hardburn
in thread float values and operators by soulchild

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