小学生でも使えるRPN計算機
やり方がわかっていないのかもですが、iPhone, iPadで使用しているときに、スワイプ入力などで、”一つ前の計算に戻る・取り消し”処理が行えないのが残念です。
RPN計算機の中で一番のおすすめ
Almost perfect
Unfortunately there seems to be a bug where the programs you create on the iPhone do not sync to the watch.
Even with this bug, this is still well worth buying over the Lite version of this app.
Functional, but UX desperately needs work on WatchOS
On WatchOS, the user interface design has a number of major inconsistencies with standard UI patterns:
The watch app is organized as a single screen with two trays at the top and bottom. The trays are accessed exclusively via touch. The stack is in the top tray and advanced functions are in the bottom tray. This is quite different from most software for the Watch, which generally use sliding cards to access things which don't fit on one screen.
The lower tray, sensibly enough, is accessed by swiping upwards anywhere on the bottom edge of the display and dismissed by swiping downwards.
The upper tray, on the other hand, is accessed by swiping down from the right half of the top edge of the display. There does not appear to be any function assigned to the left half of the display. The tray is dismissed by swiping upwards, but a full row of space in the stack is dedicated to a large "back" button which duplicates this for no discernible reason.
This arrangement simply isn't very good. Every Watch includes a hardware control for vertical movement and it's not used in any way despite the use of vertical movement for navigation. The touch controls are implemented strangely. The end result feels very non-native, is fiddly to use, and generally lacks polish.
Great calculator!
Visualising the stack
The best
Great app if you prefer R.P.N. But…
Bugs
Great RPN Calculator!
The only things I wish it had are a few more GUI keys. An EE key in "basic" mode would be nice, and more stack control keys (Roll up/down, Drop) in both modes for when you want to be lazy and only use the mouse. The "scientific" mode already features an EE key and thanks to the programming function I added the stack control keys as programs. Programs appear as keys below the display starting at the left, I added a couple blank programs with spaces for titles to move my stack control keys above the numeric keys. It's almost perfect!
A waste of time and money
Unbelievably bad app.
やくだたない
Best practical programmable RPN iOS calculator
So why did I give it 4 stars even though it has a debilitating bug? It is unapologetically RPN. The layout and functionality isn't perfect; but it is the most practical design I have seen for writing useful scientific/engineering programs on an iOS device. The layout and functionality on an iPad is stellar.
I will definitely keep this app hoping that the watch bug gets fixed. It is very much worth it's price.
bug report - apple watch:
1e-5より小さい数
バイブレーションについて
ただボタンのバイブレーションですが、ボタンを離す時ではなく、押した時に動作してもらうと助かります。
Bug report
Correct answer is ~1.0326.
This error occurs for all 3 page #1 functions:
X^y, Y^x or Yth root X.
Occurs on iPhone and watch.
Interestingly 30.91^(1/36)=1.1 correct!
One quirk: Swipe up brings up the extensive operators pages with buttons to select between #1, #2 or PRGM but then you are stuck there... until you notice that only a “short” down swipe and not from top of screen, but center or bottom third gets you back to the main screen.
This is my first really useful calculator for the Apple Watch!
Response from developer
I apologize for the bug. In this app, x^y is calculated as e^(y * ln x) and I found a bug in e^x. I forgot to check underflow while calculating power series of exponential formula. Therefore, the bug is appear when x is small and calculate e^x. I fixed that bug in version 2.5 . So please update to fix it.
