HP Calculator Applications in the Workplace

[Thomas Klemm]

(07-13-2014 12:26 PM)Don Shepherd Wrote:  OK, how do you run it?

Just enter A and B. Then X = A XOR B.

Example:
A = 5
B = 6
X = 3

Am I missing something?

It's probably not worth to follow that path. We'd need that expression several times. It's much easier to semi-translate the numbers to binary, calculate XOR on the individual bits and recreate the result from these:

Example:
A = 5 = 4 + 0 + 1
B = 6 = 4 + 2 + 0
A XOR B = (4 + 4) MOD 8 + (0 + 2) MOD 4 + (1 + 0) MOD 2
        = 0 + 2 + 1

Cheers
Thomas