Graph

The graph plotting and mathematical package for the Psion series 3

Installation

Place the files graph.opa (for series 3) or graph3a.opa (for series 3a) and
gphelp.opo in any \app\ directory.

Current Functions

3 Windows for graphs, 1 full screen 2 half screen windows.
Plotting of any function that can be evaluated in "Calc".
Plotting of data points.
Linear fits of data points, with gradient, x intercept, y intercept and RMS
error calculation.
Manipulation of data points by functions.
Editing, modification,  deletion and display of data points.
Numerical integration of functions using simpsions rule.
Solution of equations by Newton Raphson method.

Bug reports and new feature requests are welcome.

Mail

uv94002@ox.ac.uk
or
CompuServe:100021,3354

Disclaimer

Although I have fully tested this program and see no reason why it should
cause problems I would still like to issure the following disclaimer.
This program is used entirely at the users risk, and any fault or loss of
data caused by the use of this program will bet the  responsibility of the
user and no liability will be placed upon M.Millar.

Bug fixes

V0.82-0.83, added Escaping from graph plotting
V0.83-0.83.1, Fixed the jump to graph plot after linear fit.
V0.83.1-.2, Fixed the bug with -ve RMS means
V0.83.2-.3, Added x intercept display to Linear fit.
V0.83.3-.4, Fixed bug with plotting fitted graphs to windows other than Full
screen.  Speeded up graph plotting by reducing number of significant figures
to be parsed.
V0.83.4-.5, Added option to set X ranges before autoranging
V0.83.5-.6, Code refinements, commenting of code