Matlab

How large was the largest system that you have simulated in Simulink?
Hello all, We are in the process of deciding whether we can continue the development of our simulation models in Simulink. The problem is that the planned changes and additions to the model will increase the number of state variables to the order of tens of thousands. Has anybody on the list simulated a very lar... 31 May 2010 11:57

Global Variables/Passing Data Using GUIDE
Hi, I'm creating a somewhat complex GUI and will need to pass data to and from functions clearly and easily. Because of the complexity of the project, I would like to use GUIDE to make the GUI programming simpler. The issue I'm having is with GUIDE's generated .m file. In the auto generated format, functions don'... 28 May 2010 18:10

Curve / data fit
Hi there, I need some help in fitting data to a curve. I have a curve (x,y) but I do not have the equation that generates that curve. I have only a set of points x,y. What I need is some function or strategy that will give me an approximated 'y' in function of any given x. Could someone send me suggestions?... 28 May 2010 13:44

Global Variables/Passing Data Using GUIDE
Hi, I'm creating a somewhat complex GUI and will need to pass data to and from functions clearly and easily. Because of the complexity of the project, I would like to use GUIDE to make the GUI programming simpler. The issue I'm having is with GUIDE's generated .m file. In the auto generated format, functions don'... 28 May 2010 13:44

isocline surfaces - 3D
I want to get the isocline surface of the 3D system of differential equations dx/dt=r*(1-(x+y)/K)*x-lambda*x*y-theta1*x*z/(a+x); dy/dt=lambda*x*y-m1*y*z-mu*y; dz/dt=theta2*x*z/(a+x)-m2*y*z-delta*z; where r=3;k=45;lambda=.006;m1=.05; a=15;mu=.24;delta=.09;theta1=.5;theta2=.2;m2=.04; Please supply me the detailed... 28 May 2010 12:38

Linking error when using rtw to compile sfunction builder block
Dear all, I am getting a linking error when using realtime Workshop to create a standalone from a simulink model which includes a library. I am trying to create a standalone from a simulink model using Matlabs Realtime Workshop. The simulink model consists of a s function builder block which includes a C++ librar... 28 May 2010 12:38

Correct Sample time for OFDM using rayleighchan
The channel sample period is equal to the Symbol Period divided by the number of samples put on the channel per symbol. The number of samples put on the channel per symbol is equal to the number of carriers plus any padding/conditioning needed for the IFFT plus any additional padding needed for cyclic prefixing and win... 28 May 2010 12:38

Setting z scale in mesh plots
Hello all, I am plotting data files using meshc to get a 3D image of the data, and I am running into difficulties setting the scale of the plots. Can someone show me the options I need to include in calling meshc in order to specify the range I want on the z axis? ... 28 May 2010 12:38

Segmentation fault when initializing application generated by mcc
My C++ code calls a shared library (called libcomps.so) generated by compile my MATLAB code with mcc. I followed the routines to call the library with code: mclmcrInitialize(); if (!mclInitializeApplication(NULL,0)) { std::cerr << "could not initialize the application properly" << std::endl; setup =... 28 May 2010 12:38

randn: How to use seed
Hi, I am simulating normal random noise and since I am debugging my code, I want same random noise for various run. I could not figure out hot to use seeds for that purpose ... Regards, Dushyant ... 1 Jun 2010 13:04