Here is a function that converts a number from bin, 
oct, hex, or dec  to bin, oct, hex, or dec.  It works but is crude and 
doesn't have all the nice error handling.  For example, a user could ask 
the function to convert a 3 from binary to hex.  The unit doesn't know 
that 3 doesn't exist in binary.  This would be easily added.  Perhaps someone 
out there in calc-ti land would like to do something with it..???


The parameters are base(##,from,to).  For example, to convert 1100011 from 
binary to oct would be base(1100011,2,8).


