EXC/ x<>Rn for stack efficiency

[Dieter]

(06-16-2017 12:39 PM)SlideRule Wrote:  The source can also be viewed at V. Toth's TI site under the sub-heading
SR-56 Applications
at pages;
...

Ah, great – thank you very much.

It's a real flashback to the early times of programmable calculators. A program for solving linear equations with two unknowns that flashes "SOS" (i.e. 505) when the determinant is zero, a quadratic solver where the program works slightly different from what the instructions say, prompting for input data by displaying "1", "2" and "3", the choice of simplified algorithms that fit into merely 100 unmerged steps... those were the days. ;-)

Dieter