Man Scilab
lotest
Scilab Function
lotest - demo of the Lorenz attractor
Calling Sequence
-
[]=lotest([f_l,odem,xdim,npts,pinit])
-
[y]=lorenz(t,x)
-
[]=ilo(sig,ro,beta)
-
[]=ilof(sig,ro,beta)
Parameters
-
f_l
: can be
"loren"
or
lorenz
. it
is the name of the external for the Lorenz
system.
"loren"
will use a Fortran coded
version of the lorenz system and arnold will and
loren
will use a Scilab coded version.
lorentz
is the Scilab
macro which code the lorenz system. This macro is loaded when
calling
lotest
.
-
ilof, ilo
:are used to fix the parameters of the Fortran and Scilab code version of the Lorenz system.
-
odem,xdim,npts
: are optional arguments. Their meaning and syntax can be found in the portr3d help
Description
A call to the function
lotest()
will interactively
display a phase portrait of a the following dynamical system
y(1)=sig*(x(2)-x(1));
y(2)=ro*x(1) -x(2)-x(1)*x(3);
y(3)=-beta*x(3)+x(1)*x(2);
See Also
portr3d
,
ode
,
chaintest
,
lotest
,
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