[racket] typo in signatures?

For testing, you want to use check-within because check-expects fails. 

For real programming, you actually want to use inequality comparisons, 
so that they see how to program with Doubles elsewhere. 

For teaching abstraction, you may ask why repeat all these (<= n x n+epsilon)
everywhere. Oh, let's write inexact=? 




On Oct 4, 2011, at 12:01 PM, John Riedl wrote:

> Thank you for the rapid response.  Very helpful.
> 
> Is there a move to include inexact= in racket base?  It's important
> for students to get used to inexact comparisons when they have to use
> inexact numbers.  I find the one that comes with rackunit to be fine.
> 
> Thanks,
> John
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