Matlab

How to choose step size in pde
Hi I would use finite dif. method or method of lines for solving ODE-PDE syetem I am wondering how can i choose the step size for ,for example, x-dim. the total depth is 0.4 m changing the step size leads to considerable differece in thr results. Regards Ib. ... 7 Apr 2010 12:20

OPENMI
"Tom " <tom.wambecq(a)mathworks.com> wrote in message <fu2dgm$guu$1(a)fred.mathworks.com>... Hi, is somebody interessted in openMI compatibility of matlab to combine 2 sofware simulation programs to comunicate with each other? Tom Wambecq Dear Tom, We are indeed very interested in linking mat... 7 Apr 2010 12:20

Two x axis and two y axis on imagesc
Hey. I'v got a 2d array of data that i plot using the code seen below. I need there to be two x axis and two y axis (top and button - left and right). The x axis's are multiple of eachother. I need "vectorX1" and "vectorY1" to be the 2nd axis's. See my code her: imagesc(Array) vectorX = X(1:column); vectorY = z... 7 Apr 2010 10:04

Matlab COM Interface
Hello, I want to use the COM Interface with a Delphi program but it doesn't work. Do I need some special Toolboxes to use the interface? The dlls mwcomutil and mwcommgr aren't in my win32 folder. Also the mwregsvr.exe isn't there. Is it possible to invoke a COM Object without these data? I'm using Matlab 2007b. ... 13 Apr 2010 08:20

Acceleration plot
Hi all, I have been having a problem in making a plot in matlab. using an expression for acceleration a=-c*v^2-d where c and d are constants and v is the starting velocity. I am trying to find a way of making an expression so a plot of velocity vs time can be made. Takes two seconds for me to do in excel... 7 Apr 2010 10:04

Entry Point Not Found
Thanks,chandresh But I got new problem. Entry Point Not Found: The procedure entry point ws_GetControlSelectionType could not be located in the dynamic link library uiw.dll Please help me Kay ... 7 Apr 2010 10:04

Saving particular workspace variable based on the "value"
Hi, I am wondering how can you select/group workspace parameters based on their value. For example, i only want to save parameters which has 1x1double as their value. Cheers, Ilham ... 7 Apr 2010 08:57

conversion from symbolic to double
Hi I've a problem when I want to convert a symbolic variable to double. The example is from the MATLAB documentation. syms x f = sin(x^2); y = feval(symengine, 'numeric::fsolve',f,'x=3') y = x = 3.069980123839465465438655 double(y) ??? Error using ==> sym.double at 29 DOUBLE cannot conv... 7 Apr 2010 11:12

I cannot run Matlab 7.1 properly
After I installed Matlab 7.1, it showed: javax.swing.border.EmptyBorder. <int>(Unknown Source) com.mathworks.mwswing.table.SortedTableHeaderRenderer.getTableCellRendererComponent(SortedTableHeaderRenderer.java:131)... etc. when I run it on Windows 7. I have reinstalled it for several, I still got the same error me... 6 May 2010 15:22

probability transitions matrix
Hi, I am trying to write codes defining probability transition in a two dimensional model. I am using Markov process. I am lost on defining to both absorbing and reflecting boundaries in the matrix. following is my probability transition matrix. pxm=(h.*negdrift1(X,U)+0.5.*s1)./Q; pxp=(h.*posdrift1(X,U)+0.5.*s... 7 Apr 2010 10:04