4-level stack manipulation on 12c

[Don Shepherd]

(03-04-2015 09:50 AM)PedroLeiva Wrote:  what is the reason of saving so much programming steps. Pedro

The early HP programmable RPN calculators had a very limited amount of program memory and storage registers, so these small stack manipulation routines would have been very useful to anyone who wanted to get the most out of their calculator. The 12c is still in production today (and probably always will be!) so these tricks are still useful for those who want to customize their 12c. I would imagine most of those would be members of this forum.