news
[Prev][Next][Index][Thread]
news
VisualMath For Java 3 - Online symbolic math software
Dr. Weiguang Huang
124 Eastern Avenue, Kingsford, Sydney, NSW 2032, Australia
Phone: (61 2) 96620516
http://come.to/VisualMath/
http://www.bigfoot.com/~VisualMath/
VisualMath@bigfoot.com, showing@bigfoot.com
It is an online symbolic math and computer algebra system.
It can perform exact, numeric, symbolic and graphic computation,
e.g. arbitrary-precision calculation, solve equation, plot data and
user-defined functions, linear regression, symbolic differentation
and integration, pattern-match. It is a programming language, in
which you can define conditional, case, piecewise, recursive,
multi-value functions and procedures, derivatives, integrals
and rules.
You have choice to run VisualMath or SymbMath engine. Their
syntaxes are some different. Both syntaxes are case-sensitive. A first
letter of each word in VisualMath keywords is upper-case, but
all keywords are lower case in SymbMath.
Please type expressions into the Input panel, or double-
click on the Keyword panel, or click the Open menu to open a file.
For evaluation of a function Exp(x), first input N(Exp(1))
into the Input panel, then click the Run menu to get the function
value.
For plotting functions, run Plot(x^2,x). Click on the "Zoom In"
or "Zoom Out" menu under the Graph menu to zoom.
For plotting data, click the Import Data menu to import data
file. You can fit any function to data by comparing data and function
curves. Click the Linear Fit menu for linear regression.
Find coordinates by clicking, get the initial value to
the "x=" field by double-clicking, or zoom by drag, on graphics.
You can copy-and-paste from and to your document
by right-button clicking on the text field to pop-up menu. For second
way of copy-and-paste, first select the text, then key in Ctrl+C (i.e.
press the Ctrl key and the C key at the same time), then point to where
you want to paste, and finally key in Ctrl+V (i.e. press the Ctrl key
and the V key at the same time).
For security reason, Open and Save files, and Print work only
when it runs as local application. Its SymbMath engine works only when
it runs in Microsoft Window. Please read SymbMath manual SymbMath.doc.
If you seen it online, it can run offline in your computer.
It is all of Java applet, Java application and Window
application. Run VisualMath.html as Java applet, run VisualMath.bat as
Java application, or run VisualMath.exe as Window application.
If symbolic integration fails, you should add your integration
rules into the library file Int.vm in the vmath/library directory.
You can develop your library, and save library files into the
vmath/library directory. The library source codes are auto loaded
when need. Please read document visualmath.doc or visualmath.doc.html.
It is assumed that you agree the Shareware license that you
should register by US$20 with author after 20 days or you should
delete it.
Examples:
differentiation: D(x^6, x);
2th-order differentiation: D(x^6, x, 2);
integration: Int(x^6, x);
definite integration: Int(x^6, x, 1,2);
Taylor series: Taylor(Exp(x), x);
big integer: 100!;
numeric: N(100!);
rule: f(x_):=x_^2;
******************************************************************
* To UNSUBSCRIBE, send an email TO: listserv@lists.ppp.ti.com
* with a message (not the subject) that reads SIGNOFF CALC-TI
*
* Archives at http://peach.ease.lsoft.com/archives/calc-ti.html
******************************************************************