[racket-dev] Subnormal numbers?

[J. Ian Johnson]

I'm currently proctoring the freshmen's lab on inexact numbers and was curious 
how to denote subnormal numbers in Racket.
Turns out that's not possible, since there is no underflow. Why does Racket 
follow the old standard of representing underflow with inexact zero?
I imagine changing it now would break a lot of code, but I'm just curious.
-Ian
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