prad wrote at 02/12/2011 08:54 PM:
my son helped me understand what it was doing after we looked check-expect up.
so this runs a function for you and checks to see that the result is really
what you say it is going to be!
that's pretty useful, so a second thx!
This use of "check-expect" is what's known as *unit testing*, and is a
very popular practice for good software development nowadays.
You might enjoy the HTDP textbook ("http://htdp.org/";), which teaches
using tests like these as part of problem-solving process.
--
http://www.neilvandyke.org/
_________________________________________________
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/users
