The HP Prime calculator
|Input method||RPN, Textbook, Infix|
|Screen type||16-bit Color, multitouch TFT|
|Screen size||320x240px ; 3.5"|
|Processor||ARM9 (Samsung S3C2416)|
|Frequency||400 MHz max|
|RAM Memory||32 MB|
|ROM Memory||256 MB|
|Battery||Li-Ion Rechargeable battery|
|Dimensions||182 x 85.8 x 139 mm|
|Discovered||Late March 2013|
The HP Prime is a CAS-capable graphing galculator from HP announced in 2013.
It features a 3.5", 16-bit color, multi-touch, TFT screen with a 320x240px resolution.
- Algebraic/Symbolic/Numeric functions
- Dynamic geometry
- Advanced graphing
The CAS is based on the open-source XCas engine, a powerful and advanced one, made to operate more like Maple, MATLAB, Mathematica, as opposed to something like the Nspire's CAS, which is made to be easy.
OS version history
- Pre-releases versions (from leak(s) and testers) : from rev. 3xxx to 5106
These have been found on the DVT prototype models. Production models may have different components.
- Screen: Multi-Touch Color Display 3.5" diagonal with a resolution of 320x240px
- Processor (U101): Samsung S3C2416XH-40 - ARM9 (core: ARM926EJ-S) clocked at 400 MHz maximum.
- RAM Memory (U200): Hynix H5MS2562NFR - 32 MB
- Flash Memory (U201): Samsung K9F2G08U0C-SCB0 - 256 MB
- Battery: Li-Ion 3.7V, 1500 mAh (5.55Wh)
- Early / First (known) revisions (prototype):
- The calculator was named "HP Advanced Graphing Calculator"
- The back color is white
- The D-Pad was silver-colored
- DVT Prototypes:
- The calculator gets the name "HP Prime Graphing Calculator"
- The D-Pad gets black-colored
- Production models :
- The calculator gets its back color changed to Black.
About half of the RAM (~ 16MB) is taken up by the OS, the other half is free.
- Very compatible with the HP 39Gii's BASIC. (mostly additions and fixes)
- Lists are array pointers.
- Objects work through reference counters. You can have a single object reference in many places - it could be hardcoded in the main memory, or a user object on the home screen, or a variable.
- All characters are UTF16.
- Once exported, functions act like they are built in.
- The advanced grapher uses interval based math, and cannot be mixed with user functions.
No native programming capabilities are offered by default.
HP provides a free Windows software (runs in Wine on other platforms, but with pausing and BLIT issues) reproducing the handheld behaviour.
It is not a emulator, but a simulator (the codebase has been recompiled for Windows).
It's estimated to run between 5 and 10 times faster than the handheld depending on the application. 
- By TI-Planet.org - French and English : PC Software review - Hands-on review - Hardware review
- By hpgraphingcalc.org - Chris Olley - English : http://www.themathszone.com/?p=480
- By "compsystems" - Spanish : http://www.adictoshp.org/topic/350-emulator-review-hp-prime-virtual-calculator-on-pc/
On the market
- 'tw_hpcalc' (Tim Wessman, HP) - Aug. 08/09, 2013 on Omnimaga's IRC chat
- Source : http://tiplanet.org/forum/viewtopic.php?f=55&t=12821&lang=en
- Tim Wessman, 30 July 2013, 9:42 p.m. - On HP-Museum
- Personal experiments show the software is up to 10x faster for graphing advanced plots in the demo gallery