Math Forum / Math Software / Scilab / June 2006

I noticed the following in problem in Metanet using the latest scilab
svn binary.
You can recreate the problem if you run the example given in the help
for add_edge. It looks like this (with the show_graph commands

Does anyone know how works this function? Does anyone have used it?
The help is not very clear... (cf just below)
Thanks a lot for your answers.
"Calling Sequence

Is there by any chance a build-in function in SCILAB for the ordinary vector
cross product?

I would like to create permanent constants, just like %e, %i, or %pi
which are not deleted by the "clear" command.
Is there a way to do it from the command line or in the .scilab script?
Thanks for your help!

when I try to pass a file name such as "plot1.csv" to a function I
created DisplayPlot(file) I get an error that says I am trying to
redefine the function file.
How do I let DisplayPlot know that file is a string and not something

is there any way to find out where SciLab is installed (or the SciLab
binaries live) on Windows systems?
Any Registry keys where the SciLab installation folder is mentioned?
I'd prefer not to use the registry keys created by the

Dear list,
I'm currently trying to integrate SciLab into my own application. The
application is written in C and so far I got the first steps running using
the example code in examples/callsci.

Hi all! I am using ODE solver:
y=ode(y0, t0, 0:1:Tend, 'myode');
I need to stop it when it catches up a given point "YF" (or region of
space), even before the normal simulation time "Tend", in order to

I had problems using the scilab-4.0 dir command to inspect (with .isdir
and .date) directories different from the current one. The modified
dir.sci file that I enclose below apparently works.
Unfortunately, I have to cope with very large directories. I noticed

I am a very very very bad Scilab programer. I would like to draw a
looping for a toy car, with an in road and an out road.
Next program works :
clear

It is possible a section definition function to fitting?
x<0;    f(x)=0
0>=x<1; f(x)=1
x>1;    f(x)=0

Sometimes I can copy some scilab script to scilab command windows without
problem, as following:
-->a=1;
-->b=2;

I open scilab 4.0 final version installed from www.scilab.org
I use ultraedit, and open two ultraedit windows at the same time.
I copy some scilab script from ultraedit.
I paste it into scilab shell with ctrl-v

i have the following problem, i use scilab 4.0 and stixbox 1.2.4 and
when I try to use inverse normal distribution e.g. qnom(0.5) i get the
following error
qnorm(0.5)

I'm interested in how the spectrum of an audio signal changes over time.
I have ten's of series
with thousands of data points
with a few hundred amplitudes