Introduction xi
The HP Community
One of the benefits of owning an HP calculator is that there are large numbers
of people like you who own one as well. In fact, there are still active groups
and websites where users gather in person and virtually. These sites and
groups can be sources of great information and can often provide answers to
questions. Some of the most helpful sites include:
hpcc.org – This is the website for a group of users that has been in
existence since 1982, centered in London, England, and which still
publishes a journal of articles, application programs, and other
material. Back issues are available as well. The group also holds
regular meetings online and in person.
hhuc.us – This site contains information about the HP handheld users’
conferences in the US since 1999. These meetings continue to be held
and information about future conferences can be found there.
hpmuseum.org – In addition to being an online museum for HP
calculators where you can look up a favorite model from the past, this
site has a very active discussion forum about current and older HP
calculator models, things related to HP calculators, or things
completely unrelated to HP calculators. There is also a section of the
forum devoted to software for various HP calculators containing user-
submitted programs.
commerce.hpcalc.org – This site offers a USB thumb drive with more
than ten years’ worth of PPC Journal issues mentioned earlier along
with an incredible amount of other calculator documentation and
materials. It also contains copies of the presentations made at
previous HP handheld users’ conference gatherings. Check there for
more information.
literature.hpcalc.org – This site has scans of a large number of HP
calculator manuals and training materials as well as of non-HP
materials, including books, in several different languages. Be sure to
check it out.
Note: None of the above sites are in any way associated with HP.
If you have a question or wish to see if someone has already found a solution
to a problem you are facing, check these resources out.
So enjoy this updated version of a true classic. There are always new
problems to be solved and the HP 15c CE is ready and able to help!
February, 2023
Włodek Mier-Jędrzejowicz Gene Wright
Chairman, hpcc.org Moderator, hpmuseum.org/forum
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