(12C) Payback Period in Cash Flows

[Carsen]

(03-26-2018 12:33 AM)rprosperi Wrote:  On the '88 12C (same underlying h/w as when introduced), it takes about 8 seconds to produce the proper answer. I ran it 3 times to verify. Unfortunately, there is no TEVAL on a 12C, so it has to be measured by eye with a watch next to the machine.

Was this better or worse than you expected?

Suggestion: Update the PDF with these operating steps, as most folks will just grab the PDF and try it later, and no doubt some will be confused like I was... you know, us non-finance guys.

I had a guess of about 10 seconds. I have experience with a 1987 HP-15C so I had a pretty good guess of how fast a 1980's HP-12C would be. I requested a speed test simply because of my curiosity. Thanks a lot.

I'll take your suggestion and upload a new version. I originally intended the file to be only for me but now that I decided to share it, I'll rewrite to be user-friendly. And I'll try to reduce some steps too.