Numerical/Matrix Computation over Web, with graph
This is an example of using Octave-cgi with graph -- a web interface to
the software Octave, a Matlab clone.
The computation is done on a computer at University of Kentucky.
So please do not submit codes that will take a long time to run or
take up a lot of memory. It is intended for occational, quick computations
for those do not have Matlab/Octave
on their own computers. If you like it, you should
get your own copy of
Octave -- it is free!
There is a graphics output (as gif file).
I learned just enough Octave to make one plot. For more examples
please see Dr. Ye's page:
here .
I especially like his last example of Taylor expansion of the
function sin(x). (you can set the number of terms n and range of
approximation).
More examples in Dr. Li' page:
here .
(in the interactive example section)
A similar interface
with a statistical software R which has a graphic putput
is here .
You can type Octave/Matlab code in the box below and click "submit to Octave".
Beware: I was told there are many differences between Octave and Matlab in the
graphics area.
The box have some code already there, as a
"live" hands-on example.
Student can submit as is, or modify it then submit, and see results.
At the moment only people from "uky.edu" can use the cgi code.
If you feel I should allow the ".com" people to use it, let me know.
The cgi code is written by Mai Zhou.
I am puting the cgi code under public domain, but trust you to credit where
credit is due.
The code is inspired by the work of
MJ Ray.
If you have any problem or simply find it useful, drop me a line.
Want to use it in your own html page?
It is simple.
Just put the following lines anywhere in you html page.
<form method="post" action="http://www.ms.uky.edu/~statweb/cgi-bin/goOctave.cgi" >
<textarea name="INPUT" rows="6" cols="74">
gsplot rand(20, 3)
</textarea><br><input type="SUBMIT" value="Submit to Octave" >
</form>