HP 35s Checksum explained

[MarkHaysHarris777]

(02-11-2015 04:37 PM)Thomas Radtke Wrote:  

(02-11-2015 04:08 PM)MarkHaysHarris777 Wrote:  [...] I think its worth using professionally.

Same here, but that's more a matter of personal preference for this kind of calculators and the wish to have all those new functionality in comparison to its predecessors. It would be much more reasonable to use a 42S, 32S(II) or a 15C imo as I think finding new bugs is more likely with the 35s. I hope I can estimate the results well enough to catch a new problem.

Yes, but, the 42s is still way too expensive ( I don't have one yet, and I'm not likely to have one until it can be had for less that $100.00. I'm noticing they're still selling on E-bay for anywhere between $250 and $320 dollars. On the other hand, if you have a 34s you *have* a 42s and a 16c ! The 35s and the 34s are in two separate classes... that 34s is in a league of its own/ truly phenomenal!