The HP Xpander (F1903A) aka "Endeavour" was to be

Hewlett-Packard The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company. It was founded by Bill Hewlett and David Packard in 1939 in a one-car garage in Palo Alto, California ...

's newest

graphing calculator Graphing Calculator may refer to: * Graphing calculators, calculators that are able to display and/or analyze mathematical function graphs * NuCalc, a computer software program able to perform many graphing calculator functions * Grapher, th ...

in 2002, but the project was cancelled in November 2001 months before it was scheduled to go into production. It had both a keyboard and a pen-based interface, measured 162.6 mm by 88.9 mm by 22.9 mm, with a large

grayscale In digital photography, computer-generated imagery, and colorimetry, a greyscale (more common in Commonwealth English) or grayscale (more common in American English) image is one in which the value of each pixel is a single sample (signal), s ...

screen, and ran on two rechargeable AA batteries. It had a semi-translucent green cover on a gray case and an

expansion slot Expansion may refer to: Arts, entertainment and media * ''L'Expansion'', a French monthly business magazine * Expansion (album), ''Expansion'' (album), by American jazz pianist Dave Burrell, released in 2004 * Expansions (McCoy Tyner album), ''Ex ...

. The underlying operating system was Windows CE 3.0. It had 8 MB RAM, 16 MB ROM, a

geometry Geometry (; ) is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures. Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician w ...

application, a 240×320 display, a Hitachi SH3 processor, and e-lessons. One of the obvious omissions in the Xpander was the lack of a

computer algebra system A computer algebra system (CAS) or symbolic algebra system (SAS) is any mathematical software with the ability to manipulate mathematical expressions in a way similar to the traditional manual computations of mathematicians and scientists. The de ...

(CAS).

Math Xpander

After discontinuing the Xpander, HP decided to release the Xpander software, named the ''Math Xpander'', as a free-of-charge application that ran on

Windows CE Windows CE, later known as Windows Embedded CE and Windows Embedded Compact, is a discontinued operating system developed by Microsoft for mobile and embedded devices. It was part of the Windows Embedded family and served as the software foun ...

-based

Pocket PC A Pocket PC (P/PC, PPC) is a class of personal digital assistant (PDA) that runs the Windows Mobile operating system, which is based on Windows Embedded Compact, Windows CE/Windows Embedded Compact, and that has some of the abilities of modern ...

devices. It was hosted by Saltire Software, who had been involved in its design.

References

External links

HP Xpander at hpmuseum.orgHP Xpander at hpcalc.orgHP Xpander at rskey.orgHP Xpander at evilmadscientist.comMath Xpander user's guide
{{HP calculators Graphing calculators Windows CE devices xpander Vaporware

Math Xpander

See also

References

External links