Prime number finder HP11C?

[rprosperi]

(06-19-2016 06:43 PM)Don Shepherd Wrote:  But if you ever want to write solver equations, especially complex ones, on the 19bii, be aware that there is a major gotcha: it will not store your equation if it has any errors in it. You must correct the error immediately, unlike the solver in the 17bii which goes on and stores your erroneous equation and lets you fix it later.

Thanks Don, this is news to me, though it does explain why I believed one could store erroneous equations and fix the syntax later but then could not do so; I usually use the solver on a 17BII or 27S, but had this exact issue one day when I grabbed a 19BII. I had not realized the solver behavior varied by model this much.

Do you know which of the solver-equipped machines behave which way:

18C, 19B, 19BII, 17B, 17BII, 17BII+(Gold), 187BII+(Silver), 27S ?

In truth, I don't care about 18C and 19B, since I don't use those (as the earliest models they could be flaky?) but the others are all within reach and are part of regular rotation.

Gonna go try this PRIME program on a 27S.