Hello,
try with
function out=f3(vect)
x=vect(1);
y=vect(2);
out = [x^2+y^2,x^4+y^4-10]
endfunction
Next time take a look at the fsolve examples !
S.
> Le 16 oct. 2018 à 02:52, rsherry8 a écrit :
>
> function y=f3(x,y)
>y =
Thank you for your response. I am trying to solve the following system
of equations:
x^2 + y^2 = 0
x^4 + y^4 - 10 = 0
I defined the following function in SciLab:
function y=f3(x,y)
y = [x^2+y^2,x^4+y^4-10]
endfunction
That appeared to work. I found that
Le 16/10/2018 à 02:00, rsherry8 a écrit :
You Wrote:
If it is provided, g2() must be the jacobian of g1(): it must
compute and evaluate the partial derivatives of g1(), with respect to
x and to y.
That's definitely not the case with your g2(). It should rather
return something like
You Wrote:
If it is provided, g2() must be the jacobian of g1(): it must
compute and evaluate the partial derivatives of g1(), with respect to x
and to y.
That's definitely not the case with your g2(). It should rather
return something like [2*x 2*y].
I do not understand this
Le 15/10/2018 à 23:52, Samuel Gougeon a écrit :
.../...
Actually, the fsolve() page is rather poor : both given examples are
about a single variable.
https://help.scilab.org/docs/6.0.1/en_US/fsolve.html
fsolve() is a key function. We should improve its help page.
This is now explicitly
Hello,
Le 15/10/2018 à 20:39, rsherry8 a écrit :
I am trying to solve a system of two non-linear equations using
fsolve. I define the following two functions:
function z=g1(x,y)
z = x^2 + y^2
endfunction
function z=g2(x,y)
z = x^4 + y^4 - 20
endfunction
When I type something like: g2(2,2)
I
Le 15/10/2018 à 12:40, Carrico, Paul a écrit :
Dear All
I spent some time in finding a mistake in my code ; I finally noticed
where the issue comes from …
I’m reading a text file and if I use the windows release instead of
the linux one, the number of lines is different, even if I use
I am trying to solve a system of two non-linear equations using fsolve.
I define the following two functions:
function z=g1(x,y)
z = x^2 + y^2
endfunction
function z=g2(x,y)
z = x^4 + y^4 - 20
endfunction
When I type something like: g2(2,2)
I get 12 which is right.
I then run the following
Hi again,
I just filed a bug report here:
http://bugzilla.scilab.org/show_bug.cgi?id=15809
Would it be possible to bring back the old mem-dump approach in scilab 6? I
mean, could I write a gateway that just takes a pointer to the first byte in
memory, figures out the size, and dumps to disk?
Hello all,
Correct, I experienced such a slowness while working with Xcos diagrams for
Scilab 5. At first we considered HDF5 for this deep nested list / mlist
data-structure storage however after some tests ; XML might be used for
tree-like storage and HDF5 (or Java types serialization) for
Le 15/10/2018 à 15:07, Arvid Rosén a écrit :
Hi,
Yeah, that makes sense. Or, it was about what I expected at least. It
is a pity though, as handling thousands of filters isn’t necessarily a
strange thing to do with a software like Scilab, and making a special
serialization like that would
Hi,
Yeah, that makes sense. Or, it was about what I expected at least. It is a pity
though, as handling thousands of filters isn’t necessarily a strange thing to
do with a software like Scilab, and making a special serialization like that
would be nothing less than a hack.
Do you think there
The line endings codes may change the behavior of such text import routines.
De : users De la part de Carrico, Paul
Envoyé : lundi 15 octobre 2018 12:41
À : International users mailing list for Scilab. (users@lists.scilab.org)
Objet : [Scilab-users] mgetl -> diffrent number of lines
Dear
Hello,
I looked a little bit in the sources: the evident bottleneck is the
nested creation of an hdf5 group each time that a container variable is met.
For the given example, this is particularly evident. If you replace the
syslin structure by the corresponding [A,B;C,D] matrix, then save is
Dear All
I spent some time in finding a mistake in my code ; I finally noticed where the
issue comes from ...
I'm reading a text file and if I use the windows release instead of the linux
one, the number of lines is different, even if I use "dos2unix" tool: any idea
of the origin?
Thanks
Le 15/10/2018 à 11:55, Arvid Rosén a écrit :
Hi,
Thanks for getting back to me!
Unfortunately, we used Scilab’s pretty cool way of doing object
orientation, so we have big nested tlist structures with multiple
instances of various lists of filters and other structures, as in my
example.
Hi,
Thanks for getting back to me!
Unfortunately, we used Scilab’s pretty cool way of doing object orientation, so
we have big nested tlist structures with multiple instances of various lists of
filters and other structures, as in my example. Saving those structures in some
explicit manual
Hello Arvid,
On m
Le 15/10/2018 à 10:11, Arvid Rosén a écrit :
/
N = 4;
n = 1;
filters = list();
for i=1:n
G=syslin('c', rand(N,N), rand(N,1), rand(1,N), rand(1,1));
filters($+1) = G;
end
tic();
save('filters.dat', filters);
ts1 = toc();
Hello,
I tried your code in 5.5.1 and the last nightly-build of 6.0: I see a
slowdown of around 175 between old save in 5.5.1 and new (and only) save
in 6.0.
It's really related to the data structure, because we use hdf5
read/write a lot here and did not experience significant slowdowns using
Dear Scilab list,
We have been using Scilab since version 3 at my company. Migrating from one
version to another has always been some work, but going from 5 to 6 seems to be
the most difficult so far.
One of the problems for us, is the new HDF5 format for loading and saving. We
have a huge
Hello,
Everything is fine now,
S.
Le 15/10/2018 à 09:00, Clément DAVID a écrit :
Hi all,
It seems OK to me now. Could you please recheck ?
--
Clément
-Original Message-
From: users On Behalf Of antoine monmayrant
Sent: Sunday, October 14, 2018 2:16 PM
To: users@lists.scilab.org
Hi all,
It seems OK to me now. Could you please recheck ?
--
Clément
-Original Message-
From: users On Behalf Of antoine monmayrant
Sent: Sunday, October 14, 2018 2:16 PM
To: users@lists.scilab.org
Subject: Re: [Scilab-users] bugzilla.scilab.org is down
Le 14/10/2018 à 09:49,
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