Hyperbolic functions
In the next update for this calculator please add the six hyperbolic functions. HSIN, HCOS, HTAN, ARCHSIN ARCHCOS, ARCHTAN. This is a five star appreciation.
RPN-55 SD is not free (it costs 7.99), however it doesn't contain in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
The price of RPN-55 SD is 7.99.
To get estimated revenue of RPN-55 SD app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
In the next update for this calculator please add the six hyperbolic functions. HSIN, HCOS, HTAN, ARCHSIN ARCHCOS, ARCHTAN. This is a five star appreciation.
Very realistic. A delightful calculator app especially if one doesn’t have a real HP-55 handy.
The HP 55 was my first scientific calculator. It got me through high school physics and an electrical engineering degree at UC Berkeley. (I used a Pickett N-500-ES slide rule for high school chemistry.) These days, the RPN-55 app is my calculator of choice. It provides all the functions I tend to need, packaged in a way that brings back pleasing memories from decades ago. In terms of function, the standard HP 55 H.MS± functions are surprisingly useful (on occasion), and I don't "Replace Unit Conversions" because I find the unit conversions more nostalgic and useful. In a future release, it would great to have the "high contrast mode" feature implemented (such as in RPN-25 CE). You might imagine that my eyes have aged somewhat since my time with the physical HP 55, and any help would be appreciated! Even better would be an HD edition which can display the stack and registers (as in RPN-45 HD). But in its current incarnation, RPN-55 is eminently functional and fun to use.
Chart
|
Category
|
Rank
|
---|---|---|
Top Paid
|
|
104
|
Top Paid
|
|
417
|
Name | Downloads (30d) | Monthly Revenue | Reviews | Ratings | Recent release | |
---|---|---|---|---|---|---|
RLM-15CX
Advance Scientific Calculator
|
Unlock
|
Unlock
|
0
|
|
7 months ago | |
i41CX+
RPN Calc with Printer and CAS
|
Unlock
|
Unlock
|
0
|
|
2 months ago | |
RPN 28x Calc
Math can be fun.
|
Unlock
|
Unlock
|
0
|
|
1 year ago | |
i41CX
RPN Calc
|
Unlock
|
Unlock
|
0
|
|
2 months ago | |
Bay Delta Live
Water and Ecosystem Management
|
Unlock
|
Unlock
|
0
|
|
1 year ago | |
Unit Converter All-in-1
Length Area Volume Weight ...
|
Unlock
|
Unlock
|
0
|
|
7 months ago | |
My WebDAV+
|
Unlock
|
Unlock
|
0
|
|
3 years ago | |
RLM-19BX
Finance & Science calculator
|
Unlock
|
Unlock
|
0
|
|
7 months ago | |
67 Scientific Calculator
|
Unlock
|
Unlock
|
0
|
|
6 years ago | |
Q Christian Fellowship
|
Unlock
|
Unlock
|
0
|
|
11 months ago |