# The Sedenion RPN Calculator

## Before using the calculator one must first **SELECT** and **INITIALIZE** one of the eight Cayley-Dickson doubling products.

### If you get NaN, you probably forgot to INITIALIZE the doubling product which you selected.

There exist only eight possible Cayley-Dickson doubling product P_{0} through P_{3} and their respective 'transposes' P^{T}_{0} through P^{T}_{3} for multiplying two ordered pairs (a,b) and (c,d).

One's choice of the eight doubling products may be selected from the drop-down product list at the top of the first column. The products P_{3} and P^{T}_{3} are the ones most commonly used by researchers.

This calculator may be used to investigate Sedenion identities involving one or more of the doubling products.

John Wayland Bales, Department of Mathematics (Retired), Tuskegee University, Tuskegee, AL 36088 USA