- HP-42S
The HP-42S is a programmable RPN Scientific hand held calculator introduced by
Hewlett Packard in1988 . It has advanced functions suitable for those involved inmathematics ,linear algebra ,statistical analysis ,computer science and other applications.HP-41 replacement
The HP-42S was released as a replacement for the aging
HP-41 series. It was designed to be compatible with all programs written for the HP-41. However, it has received criticism for its lack of expandability, and lack of any real I/O ability, both key features of the HP41 series.The 42S, however, has a much smaller form factor than the 41, and features many more built-in functions, such as a matrix editor,
complex number support, anequation solver , user-defined menus, and basic graphing capabilities. Additionally, it features a two-line dot matrix display, which made stack manipulation easier to follow.In the HP calculator community, the 42S is infamous for its inflated prices in online auctions.
HP-42S specifications
*Series: Pioneer
*Code Name: Davinci
*Introduction: 10-31-1988
*Programmability: Fully merged RPN keystroke
*Program steps: 7200
*64 KB of ROM
*Functions: Over 600
*Display: 2 linesLCD with alpha and (limited) graphical capabilities
*Expandability: No other than IR printing
*Size: 148x80x15mm
*Power: 3 1.5V cell batteries (Energizer 357/303)ample programs
Program for calculating speed according to formula v = s / t
"* the line numbers are part of HP-42s code editor, and programmer does not have to write them in"Version for "Solver" application, which allows evaluating any variable from the formula v = s / t
External links
* More [http://mycalcdb.free.fr/main.php?l=0&id=839 HP-42S pictures] on [http://mycalcdb.free.fr MyCalcDB] (database about 70's and 80's pocket calculators)
* Re-implemetation of HP-42s for PC - [http://free42.sourceforge.net/ Free42]
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