Which HP calculator had "The New Accuracy" first?

[teenix]

(06-22-2020 09:51 AM)EdS2 Wrote:  I'm just a little worried by a test case that involves small integers like this. Another example given by Kahan as an accuracy test is this:
729^33.5 / 3^201 -1

It would be interesting to me to see this calculation done on an HP-22, or HP-91, or both, or any other in Joe's timeline of accuracy.

Here are my results:
HP-15C LE: zero
HP-25: -9.99E-08 (same as HP-35 with V4 ROM)

Using the emulator, only 32e, 37e, 38e/c give 0 as result.

cheers

Tony