General

hi all, i am new to scilab.

i am getting an error wen i try to execute the following lines of code:

for example,

radius=input("Radius=?","string");
area=3.14159*radius*radius;
disp("area");

output is as follows:

-->exec('C:\Users\dell\Documents\1.6', -1)
Radius=?3
area=3.14159*radius*radius;
!--error 144
Undefined operation for the given operands.
check or define function %s_m_c for overloading.
at line 2 of exec file called by :
exec('C:\Users\dell\Documents\1.6', -1)

plz help me out wid dis basic concept. it is showing a 144 error.

Hello!
I'm new with Scilab and I'd like to know if there is the possibility to make forecasting with neural networks in Scilab.
I have installed the ann toolbox, but I didn't find functions to make predictions.
Can somebody tell me if it is possible in Scilab?

Thanks for your reply.

how to find the factors for a^2+cd+ad+ac using factors in scilab?

The function 'derivative' works fine for computing approximate derivative of a function f(x). But what is the command to find approximate derivative of f(x,y) wrt x or y at some value.
i.e. df/dx @ x = x0, y = y0.

I've installed Fuzzy Logic Toolbox for Scilab 5.4.1

In Matlab we can write "fuzzy" in command line and use GUI fuzzy editor.

How to use Fuzzy GUI editor in Scilab?

Hello,

In my code i need to send some input parameters to scilab, process it there and the result should return back to web.
For example if i want to find factorial of a number using scilab and result should display on button click , how will write code for that.

class file
    {
        [DllImport(@"F:\scilab-5.4.1\bin\call_scilab.dll", EntryPoint = "StartScilab", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]

Hello,I am trying to start Scilab in Ubuntu but I am getting following error whenever I start Scilab on Scilab console....

 loading initial environment
exec('@TOOLBOXDIR@/loader.sce');
                                !--error 241
File "@TOOLBOXDIR@/loader.sce" does not exist.
at line       2 of exec file called by :    
      exec(startupfiles(i),-1);
at line     156 of exec file called by :    
exec('SCI/etc/scilab.start',-1);;

Can we run epanet2 (hydraulic software) functions in scilab?

Hi, I am using Scilab for first time. I have this data file (ep.txt). The first column is x followed by 5 y columns. I want to fit each column with y=a+b*(x-c)**2. Is it possible to do it simultaneously (to find a,b,c for all 5 y columns at a time) or should I try one y column at a time. In that case can anyone suggest me the command lines.
Thank you.

Hi,
I need to solve a system of 8 non-linear equations.
I would like to do that without computing the Jacobian (which is very a large : 8x8 matrix).
I inputted the system of equations successfully in SCILAB but I don't know how to invoke the 'fsolve' function.
http://help.scilab.org/docs/5.3.3/en_US/fsolve.html
Any and all help will be greatly appreciated.
Sincere Thanks.

Here is the code :

deff('[y]=f8(x)',...
['f_1=(1/8)*x(1)^2+(2/8)*(x(1)*x(2)+x(1)*x(3)+x(1)*x(4)+x(1)*x(5)+x(1)*x(6)+x(1)*x(7)+x(1)*x(8)+x(2)*x(3)+x(2)*x(5)+x(2)*x(7)+x(3)*x(5)+x(3)*x(6)+x(4)*x(5))',...