calculators and maths, science.
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- Calculators and maths
- Achay Dean. v3.01, shareware, US$20. Astronomy and sky map program,
ephemeris, constellations, non standard commands.
Polaris is at http://members.aol.com/achay2/psion5e.htm
- Procyon X
- Detailed astronomy program by John Sussenbach and Pedro van Can.
Very extensive, freeware and commercial versions, also version for Revo.
Also Procyon XL for the series 7 and netBook, with colour support, etc.
members.home.nl/psion/procyonx.html Formerly http://www.sussenbach.myweb.nl
- John Cody's program grabs naked eye viewing data for the Space
Station from NASA, and creates appointments in MS Windows Outlook that
you can download to a PDA. Knows about different city locations. Not
Psion specific, but will work.
- Solar Map
- John Davies. Freeware SolarMap with 1 MB map of the world and over 1000
cities in the database. Browse and zoom through the maps, and
modify and add to the database. Sun and moon positions. Was
GeoClock on Psion 3a/3c. Download from
- Freeware pocket planetarium and almanac for astronomy. v5.1 Feb 2001
* "Sky view" button for fast access to flat horizon planetarium displays.
* 3D scale orrery.
* Document-based saved settings.
* Configurable colour charts.
* Improved catalogues and searches.
* Background star chart plotting.
* Night shading on "Globe view".
* Revised help file.
* Planetarium and star atlas displays.
* Natural-looking, azimuthal projection with up to 5000 stars.
* 3D orrery Solar System display.
* Galilean moons of Jupiter and rings of Saturn displays.
* Day/night world map displays.
* Textual report generator.
* Comet orbit calculator.
* Large database and detailed information panels.
* User-defined labels and lines on chart.
* Full pen enablement, including pan and zoom.
* Full printing support.
* Automatic real-time update.
* Comprehensive online manual with astronomical glossary.
* Full support for colour.
Very impressive piece of work by David Rushall.
www.freepoc.de/ for formerly http://www.piecafe.demon.co.uk
- Space Encyclopedia
- Hundreds of statistics about the stars and planets and moons of our
universe. Famous scientists biographies. Our milky way. Global Warming,
etc. Shareware. This one is pretty pathetic at the moment.
- A nice astronomy software group site with links to all the Psion
(and many other) astronomy programs.
- Replica of the Psion 3a calculator. Andy B
- R Wakelin. Binary, Hex, decimal conversion calculator for Psion 7,
with tutorial help, explaining conversions. Shareware US$10. 49kb download.
- Conversion Calculator Pro
- Tim Bentinck. Shareware. Convert length, weight, area, volume, speed,
pressure, power. Units combined and converted to all possible conterparts.
World currency conversions, import rates from internet. Number formats,
VAT, temperature, fractions. User defined area for registered users.
Compound interest. Hexadecimal, ASCII conversions. v.S5.1 Convert
- Bob Hepple's RPN (Reverse Polish Notation, as used in many classic
Hewlett Packard models) calculator DCALC for the Psion Epoc 5, 5mx and
Revo. Has four modes, plus many unit conversions including up to 36
currencies. Financial has compound interest, annuities, days between
dates, present value, final value, number of payments, etc. Scientific
has all trig modes and their inverse. Statistics has sum, sum-, mean,
std deviation, factorial, permutation and combination, linear
regression. Programming has binary, octal, decimal, hexadecimal, ASCII
and IP displays, logical operations, mod and shift, prime factors.
Programable keys for your own OPL functions, Newton-Raphson iterative
solutions to functions. Stack manipulation keys, and stack content is
visible. Cut and paste to other apps. Stores settings between uses.
Draw cartesian graphs (i.e. in X and Y), a percent % key in SCI, STA and
FIN modes, inverse functions for SQR ROOT CUBE C.ROOT %, reorganisation
of the menu, smaller memory footprint (approx 45kbyte - was 65kbyte)
Looks very impressive (albeit perhaps overkill for me). In 2003, Bob
Hepple kindly made the C++ source code available (should make a
good example of how to do a large Epoc program). Marcus von Cube kindly
compiled without the nag screens (
Former Shareware £15 US$21, A$30, or trial for four weeks. PocketIQ formerly http://sedumi.freeshell.org/psion//index.html
- Flexible symbol calculator, can also be used as a general units
calculator for which any list of constants can be entered. Also
generates plots. Seems to be getting more extensive. Peter von Walter.
Shareware $10 and a Lite freeware version also.
- by Nicolas Piguet - will help you analyse complex mathematical
functions and includes features you would only normally get on a
purpose-built graphical calculator. It's quite simply the most advanced
EPOC tool available for this type of mathematics. Try
- Grapher function graphing
- Jamie Shotton's shareware program does Cartesian and Polar graphing,
graph tracing, etc. Formerly www.geocities.com/SiliconValley/Bay/6740
- HART computer algebra system
- HartMath which is written in Java 1.1 and needs a
Java virtual machine on EPOC32. Formerly www.hartmath.de/index_en.html
- There is an application called MathDraw (available from TUCOWS)
which is essentially a text-based version of M$ Equation Editor,
converting your text description into maths format (i.e. fractions
appear with the top number directly over the bottom number). These can
be exported as Sketch files and inserted in the Word app. You can't
have superscripts and subscripts on the same character, preceding
subscripts or superscripts (like in chemistry equations for isotopes,
etc), and the '-' (negative sign) preceding a superscript only displays
the '-' character in the superscript. Takes a bit of getting used to but
it is only 9kb in size and free, so what do you lose by trying? MathDraw
from Niklas Larsson. You can download at
- Gary Ewer. v5. Time additions in hours minutes and seconds. Degrees
to radians. Simultaneous equations with 2 or 3 unknowns. Quadratic
equations. Children starting algebra might enjoy it.
- Shareware by Guillaume Dupont. Like the simple built in Calc
application, but only a fraction the size. Ctrl Fn M hotkey it open,
move it with the pointer. Doesn't work from drive E: Tested version 5.2
dated 1998. US$15 shareware. Pretty cute, but I can do mental
arithmetic, and the unregistered version is annoying.
- Multifunction RPN Calculator
- Derek Johnson, shareware V1.6, #10, US$16. Like HP16C. Hex, octal
and binary modes, list ASCII, statistical and financial functions, time
calculations, logical functions, lots more, good help files. Should be
great for anyone who misses their HP calculator.
Formerly at www.freeuk.net/decca
- nCalc - multi-base calculator
- Programmer's calculator from John McAleely. v1.2
Works simultaneously in binary, hex and decimal, and has a 15
element pushdown stack with push and pop. Shifts, and, or, xor, not.
RPN stack operation. Limits are signed 32 bit numbers. Download from
- Philip Bister. Freeware. v1.01 18/3/01
An 8-digit floating point calculator which supports squares, square
roots, percent and memory functions with memory content display.
- Philip Bister. Freeware. PBconvert v1.6 20/4/02 A conversion
calculator with a user-friendly graphical interface. Contains a host of
useful conversions and can also be used as a basic calculator with
- Prime Factor Extractor
- Neil Sands. Extracts factors of numbers up to 2^30.
- Psion48 - similar to HP48 Scientific Calculator
- Version 2.1 Scientific calculator, allows matrix manipulation, compound
numbers, integers to any base, probability, time caculations, and a
menu bar. Shareware. For S3a/c, Siena, 5, 5mx. Devised by Xavier Galante,
- Scientific calculator with integrated function grapher by Graham
Parks. Fraction hex and binary support. History list. Live calculation
shows answers to expressions while you type. Evaluate option. Solves
triangles, simultaneous and quadratic equations. Matrix calculator with
transposing and inversions. Up to six simultaneous graphs, which can
be exported as sketches. Shareware, 93k zip download, registration
- Quadratic Equation Solver
- QES v1.01 Jeremy Stein 1999 Freeware
This program solves quadratic equations in the form ax2 + bx + c = 0
- Shareware statistics package released via Palmscape (try PocketIQ).
Basic statistics, average, sum, std dev, variance, smallest and largest.
Percentile based on Gaussian distribution, also plot. Linear regression,
intercept, curve fitting and plot. X or Y estimation. F test. T test.
Advice on using correct function.
- Philip Bister freeware. About 14 k.
Run small OPO modules to perform repetitive or difficult calculations
with hard to remember formulas. The OPO module collects data from the
user via a dialog and to pass the formula to Tinycalc for evaluation.
- Small computer algebra systems for the epoc operating system.
One is YACAS which is written in C/C++:
- Biotechnology Glossary
- Robbe Wunschiers. The glossary contains 568 entries of the world of
biotechnology (version 1.2). Download the Psion 5 database file (zipped,
39kb) at the PsionPlace. The database is also available in the
TomeRaider database format (Download: biotech.tr, 48kb).
- Buffer Calculator
- Buffers are intensively used in Chemistry, Biochemistry and
molecular biology to maintain a preset pH value in a aqueous solution.
Yet, the buffer properties are influenced by not only by the buffer
substance but as well by the temperature, the ionic strength of the
solution and other parameters. THE REAL BUFFER takes this into
consideration and calculates the amount of buffer substance to use and
how to titrate. It uses a database containing the most common buffer
substances used, and which can be altered by the user.
- Guillaume Sabouraud, v 3. shareware, 30 day evaluation. 100 FF US$20.
Periodical table with 28 properties, plus isotopes. Molecular weight
of a molecule. X ray properties, discoverer, etc. Display is in tiny
type I can't read.
- Data Loggers
- I don't know of any for the Psion, however there is PIC based one
called Meld designed for the Palm serial port (not Visor, which is
non-standard) that seems to have open hardware and software standards,
and good source code examples.
- Jeff Harmed's Design Tools for Chemical Engineers, a website of
engineering design tools as over 500 spreadsheets for reference,
plant operation optimisation. 2.05MB Also Elements, ChemBase,
Chemproperties, UK Prime Ministers, multi-variant analysis, psychrometric.
- Engineering calculations. Stress, vibrations, differential
equations and algebra, Numerica problem solver, etc.
- Shareware from Fatec Engineering (specialise in metal fatigue).
Electronic handbook with database on metals, materials selection, and
glossary, now up to version 3 (with same features as Windows version). Formerly http://www.fatec-engineering.com/software/fmat-epoc.html
This site will look much better in a browser that supports W3C
web standards but it is accessible to any browser or internet
device, including Psion Web and similar PDA or limited browsers.
Netscape 4.x users - turn Style Sheets off. Your
style sheet support is too broken to use (sorry).
PO Box 640, Airlie Beach, Qld 4802 Australia
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