Matlab

Product of eigenvalues - not equal to its determinant
Hi, I have a square matrix of size 11x11. This matrix is built such that it is traceless. It does satisfy the property that sum of the eigenvalues is equal to the trace of the matrix. But it does not quite seem to satisfy the property that, product of eigenvalues is equal to the determinant of the matrix. Seems like t... 2 Mar 2010 11:13

ode45 solver - outputfcn problem
Hello, I'm having troubles trying to use the 'outputfcn' command of the options of the ode45 solver. Indeed, I have a model made of several .m files all linked together, and I need to perform differential equations calculus at the end in order to get my result. The thing is that it worked very well so far (without th... 25 Feb 2010 12:31

Positioning of colorbar
I am working with a graphical user interface containing several axes. In one of the axes, an image is displayed (with imagesc). Then I want to display the colorbar for this image, but in a separate axes (so that it does not hide parts of the image, nor squeezes the displayed image). I have tried this, for instance: ... 25 Feb 2010 08:01

Read a *. File
roberson(a)ibd.nrc-cnrc.gc.ca (Walter Roberson) wrote in message <fualcq$p73$1(a)canopus.cc.umanitoba.ca>... In article <fuakdp$e92$1(a)fred.mathworks.com>, Daniele <daniele(a)libero.it> wrote: I have a problem with a m file that I'm not able to read: it starts as V1MCC4000MEC1000MCR1000x an... 25 Feb 2010 10:15

function compiled as standalone application
Hi everyone, I've used the information contains in http://www.mathworks.com/access/helpdesk/help/toolbox/compiler/br5w5e9-16.html#br57htr-5 for generating a standalone application. I use windows XP and Matlab R2007a. My "MagicExample.exe" properly works but if I do a simple change into a program compares an error as... 25 Feb 2010 06:56

Toolbox Image processing
Slt je voudrais savoir à partir de quell release de matlab est apparue la toolbox Image processing (en particulier la fonction im2bw) ... 25 Feb 2010 06:56

please show us some way
HI... this is sravya. We, a batch of 4 girls are doing a project on digital image watermarking using wavelets. we are facing a prob on embeding a visible watermark I need a matlab code Can anyone please send us the code 4 it.... or please suggest ideas abt it plss.... ... 25 Feb 2010 06:56

accessing an image at coordinates stored in a list
Hi ! I want to access an image at the coordinates x,y which are stored in a list L=[x y]. image(L(1),L(2)) would be a solution. But is there an easier one? PS : image(L) returns the values of the image at (x,1) and (y,1) Thanks in advance for your suggestions ! ... 25 Feb 2010 05:50

??? Error using ==> mpower
Hello, I need help. I can't run a program to solve a sistem of differential equations. I am trying to simulate a hydraulic system countenig a valve and a cylinder using the ode45. This is my .m file: function dxdt= sistemas(t,x) dxdt=[x(3);x(4);(((Ap/10)*(P-Ap^2*x(3)^2*Den/(pi()^2*D^2*x(2)^2*Cd^2*202600000))-K3*(X... 25 Feb 2010 08:01

Two Matlab sessions, different versions
I find myself having to run two different matlab-sessions that should communicate with eachother. After looking around for a bit, it seems that I should be using actxserver and program ID 'Matlab.Application'. Problem is, I need to run one 2009b version and one 2008b version. So how do I accomplish this? Starting up... 25 Feb 2010 05:50