Oh, nice. I didn't realize that but it's obvious once you hear it.

moo@cow[74]~/bin>perl -le 'print eval "0E0"'
0
moo@cow[75]~/bin>perl -le 'print eval "10E0"'
10
moo@cow[76]~/bin>perl -le 'print eval "10E1"'
100
moo@cow[77]~/bin>perl -le 'print eval "10E10"'
100000000000
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