SR-52 was a giant leap. How?

[Matt Agajanian]

Yeah. Thanks to Viktor Toth & Joerg's sites as well as numerous memorable visits to Computique, Freeway Stores, Olympic Sales, and Tams, I have most of those brochures.

I recall the illustration on the back pages of the charts in black, yellow, and orange comparing a keystroke approach to this example-- 1+3x[4+5/(7-2/9)]. As an inadequate representation, TI just filled the RPN stack with the first four variables of the sample equation.