A classic
Update: Its been almost two years since this app was last updated. It still doesnt make use of the larger iPhone 5 screen. The bug that causes the display to flash after running a program or using the combinations/permutations functions still hasnt been fixed. And, theres still no way to control the key click volume independently. Its a shame that HP seems to have abandoned this app...
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Its great to have an authentic HP 15C on my iPhone. Ive been a fan of HPs RPN calculators for years, starting with the trusty HP 25 that got me through college.
The built-in manual and alternate portrait layout are nice additions.
One bug: After using either the combinations (Cy,x) or permutations (Py,x) statistical functions, the display flashes continuously until some other key is pressed (on my iPhone 4S running iOS 5.1, anyway).
Also, as others have noted, the key click sound is annoying to the point where Ive muted it entirely. It would be nice to have a choice of sounds or the ability to control the volume separately.
Bob France about
HP 15C Calculator