Programming Handheld Calculators

[rprosperi]

(09-13-2015 11:13 AM)Thomas Klemm Wrote:  Programming Handheld Calculators
A reminiscence about programming in the era before personal computers
by Paul Lutus

There was an earlier thread: HP 65/25 shout-out in interview with Paul Lutus

I've added the three programs mentioned in the article to the HP Software Libraries:

• (HP-25) Space Flight
• (HP-67) Solar Calculator
• (HP-67/97) Planetary Ephemeris
  

Cheers
Thomas

Thanks for sharing these Thomas. The HP-25 article brought back fond memories of my first programmable machine. Though I wrote lots of programs for my 25C, spaceflight was never one of them. I believe that first happened with a PPC article/program for the 41C. I skipped the 67 back then, but have corrected that omission in recent years.