Matlab

find solution a quadratic polynomial in n variables to make it has minimum value
I have a quadratic polynomial in n variables that mean it has the form f(x)=(a*X1^2)+(b*X1*x2)+(c*X2^2)+d+....+(e*X15^2)+(f*X15*X16)+(g*X16^2)+h a,b,c,d,e,f,g are constant. I want to find at which X1 X2 ...X16 the f(x) has the miniumm value that mean i want to find at which value of X1 X2 ...X16 we have dF(x)/d... 18 Mar 2010 07:03

matlab and ajax
hello, i am trying to build a system that initializes some variables which are linked to ajax web based objects. i want my variable to update by way of ajax. any insight/links/keywords would be largely helpful. thank you! ... 17 Mar 2010 15:56

Inverting system of matrices
Hi there, I need to invert a system of matrices where B * X * C' = R (10*2)*(2*1)*(1*10) =(10*10) B, C and R are already known and I just need to solve for X. Can I do this by simply applying pseudoinverse twice? i.e. X*C'=R\B X= (R\B)\C' I am converned that given the mat... 18 Mar 2010 12:58

BMP to HEX File
Hi, I am trying to convert an 8-bit bmp image to Hex and then output the Hex data to a text file. Does anybody have a good solution for this? I use imread to to read in the bmp file dec2hex to convert data to Hex fprintf to write Hex data to file this method doesn't seem to work quite right. Thanks ... 17 Mar 2010 18:39

Initializaition fail in mmreader.
I am trying to load an avi file into Matlab using this, obj = mmreader('test.avi'); ??? Initialization failed. (No combination of intermediate filters could be found to make the connection.) Error in ==> mmreader.mmreader>mmreader.init at 364 obj.MMReaderImpl = audiovideo.mmreader(fullName); E... 17 Mar 2010 17:23

GUI OpeningFcn
I'm trying to figure out where to place code in a GUI that will only run once upon opening. All the code that gets placed in the OpeningFcn is ran every time a PushButton is pressed. Thanks in advance, KDC ... 17 Mar 2010 21:11

How to choose tspan?
Hi If tspan is a year then how to select your tspan interval? months?days?hours? seconds? for solving an ODE system Thanks Ib ... 3 Apr 2010 09:18

out of memory
I have written a code in matlab for my thesis. I need to find out the results for 100x100 and 1000x 1000 panels. In the program i form a 100x100 matrix and i need to inverse it and multiply with a 100x1 matrix. Currently my virtual mermory is 4096 mb. Can you please suggest me how to overcome this problem. ... 17 Mar 2010 17:23

MATCONT
Gordon <bhattacharyya.samit(a)gmail.com> wrote in message <f7d62af4-4e16-42ab-9ef1-51551803ca19(a)s21g2000vbb.googlegroups.com>... Hi, hello, I am getting similar problem. Did you ever solve this one? Anybody used Matcont in matlab 7.6 on 64-bit window vista machine? I did all the primary jobs such as ins... 17 Mar 2010 14:45

Real Time Workshop build error 1070
As promised above, here is the text that appears on my Matlab screen before each build attempt fails: cl /O2 /c /nologo -DMODEL=das1act_temp1 -DRT -DNUMST=3 -DTID01EQ=1 -DNCSTATES=16 -DMT=1 -DHAVESTDIO -DXPCMSVISUALC -DXPCCALLCONV=__cdecl -DUSE_RTMODEL -DERT_CORE -D_MT -MT /Op ..\sdbio.c cl : Command line ... 17 Mar 2010 13:37