TI-57’s 50 Steps.

[Steve Simpkin]

(11-07-2021 05:56 PM)Matt Agajanian Wrote:  Yeah. I see your point. Besides, at the 160/40 partition in the 58/58C, an impressive improvement and opportunity for more extensive programming flexibility.

Yes the TI-58/59 were an impressive improvement over the programmable models of the time. In my opinion I don’t think HP had anything comparable until the HP-41C was introduced 2 years later in 1979, at a much higher price point.

I bought my HP-25 in June 1977, just a few weeks after the TI-59/58 were introduced. The street price of the TI-58 was likely very close to what I paid for the HP-25 at the time ($116). If I had known about the TI-58 at the time and it’s greatly increased memory/functionality over the HP-25, it is quite possible I may have bought it instead. I am glad I did not as I became a total RPN convert and have gone on to own many great HP models over the years.