Reverse Polish Notation
For TI-83/+/SE, TI-84/+/SE
Designed and Programmed
by Adam Steinberger
email: astein.junk@gmail.com

RPN is a mathematical notation that eliminates the need for
parentheses in mathematical sentences/statements. For example,
53+ would be equivalent to 5+3. The expression 9353+35-2*/+-
would be equivalent to 9-(3+((5+3)/((3-5)*2))).

The following operations may be used in this program:
 +, -, *, /, ^, xth root, log base x, min, max, mean, lcm, gcd,
nPr, nCr, randInt

Special Features:
-The list above is also available from within the program.
   Just enter ? into the command line.
-All letter variables (A-Z, theta) will function as the numbers they
   contain.
-Enter X to exit the program and clear temporary lists.
-Add ? to the end of an expression to view the running lists as
   computations are being made.