Description
R47/C47 was originally forked from the WP43 project under the name WP43C, then changed to C43 and eventually in 2023-01 to C47. Much of the underlying math capabilities are originating from WP34S, most of which identical with WP43. A major aim of the C47 project was to use the default key labels of the DM42, which will also be very familiar to users of the HP-42S. No key stickers are required, and the user interface is modified to work with a single shift key.
Specifications
Capabilities
- high-resolution display with 4 stack levels, 3 rows of menus, and status bar always shown
- 34 digits of precision; exponents to ±6144; up to 1000 named variables
- full mathematical support for real and complex numbers (rectangular and polar)
- scientific calculator functions like trigonometry, hyperbolics, logs, and antilogs
- support for arbitrary bases from 2 to 16 and bitwise operations
- fraction support
- matrix/vector math
- 2-variable statistics with best-fit modelling and basic plotting
- equation writer with support for solving, numeric integration and derivatives, and basic plotting
- time value of money operations
- keystroke programmable with tests, flags, looping, and branching
- date and time math as well as built-in clock
- built-in unit conversions and library of constants
- user-customizable keyboard and softkey-based menus
- I/O to built-in flash memory or via USB for backing up and restoring states, programs, and configuration