Delta Percentage (Texas TI-58/59)

[Gerson W. Barbosa]

Back in the day I had a TI-59 for a while. After it was stolen I got a newly-released novelty as a replacement, an HP-15C. Somewhat cheaper, but the equals key was missing :-)

I was given this TI-66 last year, but I hadn't played with it yet. Thanks, hp41cx, for the opportunity.

Pressing C on both calculators (the HP-15C in USER mode) and R/S a few times will display my age then. Pressing the R/S key twice more will display my current age. Time flies!

TI-66:

Code:


000 LBL 
001 C
002 CLR 
003 x<>t
004 1
005 LBL
006 SUM
007 +
008 R/S
009 x<>t
010 GTO
011 SUM

HP-15C:

Code:


001 LBL C
002 1
003 ENTER
004 0
005 LBL 1
006 +
007 R/S
008 LAST x
009 x<>y
010 GTO 1

Gerson.

Edited for grammar.