Recursive Functions, mostly by Alice
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You can run the program 

    > java Test

to exercise the code but it is best to read the code too.

To get a feel for recursion also have a look at the following

 - Arith.java is a recursive definition of arithmetic on natural numbers
 - LArith.java is to give a trace of recursive arithmetic and a flavour
   of Church Numerals (google it)
 - Fact.java and Fib.java are unsurprising but you might like to write 
   an efficient implementation of Fib
 - McCarthy91.java is as it says. Again, google it. 
 - Perm.java produces all permutations of a string, and does not ignore
   duplicate characters
 - Recursive.java has mostly Alice's code


Patrick Prosser
30/06/2010