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RLM-11CX app for iPhone and iPad


4.8 ( 3408 ratings )
Utilities Productivity
Developer: R.L.M. Software
9.99 USD
Current version: 7.3.1, last update: 3 years ago
First release : 11 Oct 2008
App size: 20.4 Mb

The RLM-11CX is a full simulation of the successful HP-11C Scientific RPN calculator, with all the functions of the real one in a beautiful high definition interface. It includes a dynamic Portrait and Landscape orientation layouts that can be lock in the calculator’s preference ([g] > [PREF] key sequence).

The 11CX version has a complete set of Menus & Features that expand the original calculator functionality and usability:

Scientific & Statistic features:
- 3D Vector Math: Operations and functions with three components vectors stack with cartesian, spherical or cylindrical coordinates.
- Angles & Polar: Angular conversions units ‘from’ or ’to Deg, Rad, Grad, degree-minute-second and % slope.
- Complex Math: Operations and functions with complex numbers stack in rectangular or polar coordinates.
- Curve Fitting & forecast with 6 regression models using a X,Y data list.
- Equation Solver with editor to enter arbitrary equations and solve for any variable given the others.
- Fundamental Universal Constants to enter any of the NIST-CODATA values.
- Probability Distributions menu with Exponential, Normal, Uniform, Weibull and t-Student.
- Plane Triangles solution for ASA, SAS, SSA & SSS calculation modes.
- Spherical Triangles solution for AAA, AAS, ASA, SAS, SSA & SSS calculation modes.
- Units Conversion menu and editor with 10 categories: Adds a powerful and completely editable physical units conversion.
- X-Y Data Editor: Create, Edit, Save & Load statistical X,Y data lists.
Financial & Business features:
- Black-Scholes OVM: Calculates “Call” & “Put” options prices of European Options.
- Bonds Price & Yield: with Annual or Semiannual coupons and Actual or 30/360 calendars.
- Cash Flows Calculations: Calculates NPV,i%,IRR%,NFV,MIRR, NUS, etc. over cash flows series.
- Cash Flows Editor: Create, Edit, Save & Load cash flows series.
- Currency Exchange: All world currencies with actual online rates.
- Margins & Break-Even: calculate business margins and production break-even over all variables.
- TVM calculations: “Time Value of Money” problems for loans, amortizations, mortgages, etc.
- Tip & Bill Split: Calculates tips over a bill and split the total amount over participants.
Other:
- Date & Time: Perform calculations over date and time variables.
- Memory Registers: View All with Backup & Restore through text emails.
- Program Editor: Create, Edit, Save & Load programs.
- Program Debug: Executes a program step-by-step with Undo.
- Settings: Customize many settings, including formats, sounds, interface, etc.
- Quick description of any key. Touch the screen and touch the “?” button to toggle the quick help on. Touch the screen again
- Help Documents: A complete set of short documents with examples of all functionalities.

System requirements: iOS 13.0 or above.

Disclaimer: THIS IS NOT A HEWLETT PACKARD CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY HEWLETT PACKARD OR ANY OF ITS SUBSIDIARIES.

Pros and cons of RLM-11CX app for iPhone and iPad

RLM-11CX app good for

I am a bit of an RPN calculator junkie and this incarnation of a venerable model is EXCELLENT in my opinion. The emulation seems complete, the programs run quickly, and there is a very useful ability to load and save programs. It works in landscape and upright mode. Manuals for this model are available at the on-line HP museum and the examples there work well in this emulation. I have several calculators loaded on my iPhone - this is the one I keep for immediate access.
Please make HP-34C!!! Im hevy user of HP-34C for 30years or more... I think Red LED is very cool. If You make it,I will buy it!!!
Good to have the old but extremely reliable 11C on an Ipod Touch. 5 stars for an upgrade to the 4th generation iphone/ ipod retina display!
I like this calculator a lot. I suggest unlocking rotation. $5 for an hp 11c emulator...you really cant beat that, it works great. I also suggest turning on the stacks view, try that on your eBay hp11c.
This great app goes beyond the original 11c and includes even complex number math and many other functions! It also works in portrait orientation unlike the 15c app from HP, which also looks and works great but only in landscape. I dont always want to turn my iPhone or iPad on its side.
This RPN is one of THE best calcs youll find in the iPhone world. Great work !

Some bad moments

Latest release nit working on Iphone 4 with IOS 6.1.3 ... Help !!!
Crashes when you work a while with it! Very annoying! Keep away from it!
right away at start, and an excellent app renders useless - urgent fix required
Current version is consistently upside down when using the iPad with a keyboard. Wont rotate no matter how much I shake the keyboard. Highly annoying.
I have a 10c & an 11c. I leave the 10c home and the 11c at work. Now they wont get lost. I have been using this for well over 1 year and love it. It gets better with each update and I love the original horizontal mode!!! I keep this on my 1st iPhone page because I use it so much. This calculator is well worth the price! Youll love it if you have ever used RPN type calculators. Once you really learn how to use RPN you wont want to return to a regular calculator. I searched for years looking for the horizontal type HP calculators - so I could have a backup 11c that was horizontal, but to no avail...and then this app came along. :-) SCORE! :-) Great job Developers!!! My hat is off to you!!!
I originally failed to see the competitors for this 11C calculator app, and after finding them, felt bad I paid $9.99 for this one. Then I researched the other apps and found out that they didnt offer the UNIT CONVERTOR or the MORTGAGE/LOAN CALCULATOR. I use this app all the time and it is probably the closest to the original 11C in looks. VEry happy.

Usually RLM-11CX iOS app used & searched for

calculator l, hp 11c scientific calculator, and other. So, download free RLM-11CX .ipa to run this nice iOS application on iPhone and iPad.