This is to develop firmware for a pocket calculator that is a superset of the legendary HP-42S RPN Scientific. We strive to create a serious scientific instrument again like we did with the WP 34S (look here: https://sourceforge.net/projects/wp34s/ ).
WP 43S is going to come close to the ultimate RPN scientific calculator - at least that's what we are trying to achieve. This means it will be instant-on, including all the mathematics you can expect in such a package, all the keystroke programming capabilities you need to solve repetitive as well as iterative problems easily, and I/O channels for reliable backup and easy linking to an arbitrary host computer.
Specs and manuals are complete to 99.7%. Meanwhile, also the target hardware is available. The FW team works on a simulator running under Windows, MacOS, & Linux, and on the target HW. We are just seven so far, living in AUS, D, F, I, NL, and SA . See https://forum.swissmicros.com/viewforum.php?f=2 for our progress. Enjoy!
Features
- The most ample set of scientific functions from roots, exponentials, logs, and trigonometry to Beta, Gamma, Zeta, Bessel, and Chebishev, Hermite, Laguerre, Legendre polynomials
- The most ample set of probability distributions and sample statistics analysis functions
- Built in Solver for finding the roots for any variable in an arbitrary equation
- Numeric integration and derivation, automatic sums and products
- Vector and matrix algebra, solves systems of linear equations, computes eigenvalues and eigenvectors
- More than 100 conversions provided (e.g. to and from dB, light years, parsecs, barrels, carat, quarts)
- More than 50 physical constants (reflecting CODATA 2018)
- Real and complex computations with 34-digits precision.
- Long integer calculations for up to 1000 digits, incl. finding and testing of prime numbers.
- Integer calculations in 15 bases from binary to hexadecimal
- Bit manipulations up to a word length of 64 bits (like WP34S and HP-16C)
- Fully keystroke-programmable (several MB for your programs and data)
- Footprint smaller than the HP-42S, fully pocketable
- Crisp b/w high-contrast dot matrix display (240 x 400 px)
- USB-B port for communication with your computer
- IR diode for serial printing
- 43 tactile feedback keys in eight rows, two shift keys
- Six menu keys -- each menu presenting a choice of up to18 items in a single view
- Full alpha keyboard, also for Greek and international letters
- Hardware will be built by SwissMicros (see https://www.swissmicros.com/ )
- Details of our ongoing development are on https://gitlab.com/Over_score/wp43s/
- Experience what's available already: Use the free simulator!
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