Absolutely first class
A superb rendition of one of Hewlett Packard's best ever programmable calculators - now on steroids, thanks to modern computing power.
The calculator not only works much faster than the original and apparently without fault, it also makes very good use of the iPad screen in showing the stack and registries.
Anyone even vaguely familiar with RPN will surely find it impossible to award less than the full five stars. *****
The calculator not only works much faster than the original and apparently without fault, it also makes very good use of the iPad screen in showing the stack and registries.
Anyone even vaguely familiar with RPN will surely find it impossible to award less than the full five stars. *****
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Just like the real thing
I got one of these in 1978 and discovered RPN. I have never used anything but RPN calculators since. I agree that the audible key clicks can be annoying, but I usually keep the sound turned off on my iPad anyway. This is a great emulation of my long dead HP67.
Can’t hand out less than one star, unfortunately
Ohhh, that hurts. The desecration of a great calculator.
Nostalgia!
I bought a HP67 as an engineering student in 1979. I remember it cost a fortune and I was so excited to get it home and start using it. It saw me through the rest of the course and was invaluable to me. This app brings back so many memories. I would like to load the civil engineering pack, which I later added to my original calculator, but loading the extra cards from the developer's website needs a Ph.D. in astro physics and a Mac computer apparently. This needs to be simplified so the program cards can be imported directly into the app. Anyway, not bad overall for what, in reality, is just a few dollars.
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Key Clicks
Some people like the clicking sounds; I count myself as one of them. It tells me that the key I pressed performed its function. If you had looked in the app's settings, you would have found that the key clicks can be set to medium, high, and OFF. Before you complain about something, it pays to take a little time and actually learn about the app.
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