Free42
Free42
- Downloads: 186
- Requirements: Windows XP
- Size: 4.1 MB
- Licence: GPL
- Version: 1.5.2
- Added At: 2014-20-03
- Publisher Site:
Free42
The Free42 application was designed to be a complete re-implementation of the HP-42S calculator and the HP-82240 printer. Free42 was written from scratch, without using any HP code. You do not need any ROM images in order to use it, yet it is fully HP-42S compatible. The calculator integrates both the binary and decimal versions, which look identically, but represent the numbers internally in different ways.Free42 Decimal uses Hugh Steers' 7-digit base-10000 BCD20 library, which gives 25 decimal digits of precision, with exponents ranging from -10000 to +9999. Transcendental functions are evaluated to at least 20 digits. Each number consumes 16 bytes of memory. Free42 Binary uses the PC's FPU, if available; it represents numbers as IEEE-754 compatible double precision binary floating point, which consumes 8 bytes per number, and gives an effective precision of nearly 16 decimal digits, w
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