Matlab

simple solve
Dear Matlab users I'm trying to solve the following equation: t=(0:pi/30:2*pi); A=solve('4*sin(t)=tan(pi/30)*6*cos(t)-tan(pi/30)*4/3','t'); I just need the numerical (explicit) values of A. I want to see the t=0.1218 and t=-2.9506 Thanks ... 22 Mar 2010 15:29

Problem with normalized histogram
I have a matrix with different data (around 10k rows) obtained from image analysis, this data is in tab separated value files, i want to add some constraints in order to delete noisy/unused data. In order to achieve this I'm using the find function: FILESLIST=dir(PATH); RawData=[]; for i=4:length(FILESLIST); ... 22 Mar 2010 08:15

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difference between 'start' and 'preview' function
what is the difference between 'start function' and 'preview function' in image aquitition toolbox? eg. start(vid); and preview(vid); Thank you. ... 22 Mar 2010 07:09

Create collapsible hierarchy of checkboxes in GUIDE
I need to create a list of checkboxes in a GUI window, however I need the list to be grouped so that clicking the little +/- on the left side of the list expands or collapses the items in the list under the top level item. Something similar to the way any of the property inspector windows looks would be great with the ... 22 Mar 2010 07:09

3D antenna pattern
Hi, I am trying to plot 3D antenna pattern. But dont succeed at all, can somebody help me please? thanks ... 22 Mar 2010 07:09

Using variables in main function in another function
Dearly beloved, I have a slight problem and in need of a little assistance. Basically, i defined several variables in the main function of M file. Now, i want to be able to call the same variables in a sub function which is still part of the same M file. How would i be able to do so? Many thanks, Wen Zhe ... 22 Mar 2010 09:22

Tim Davis' Suite Sparse QR in Matlab
Hi, does anyone know if Tim Davis' Suite Sparse QR is implemented in Matlab both for QR and [mldivide/backslash for sparse & rectangular A], also for 64 bit Windows? Or is this only for 32 bit Windows? And, does it automatically utilize multi-core-processing? ... 22 Mar 2010 07:09

Contourf
Hi all, I am using Contourf command to plot 6 different colour zones in my graph. I am not satisfied with any of the colour templates given over there. Is there a possibility to change atleast one colour (which is maximum prevalent in my graph) to white. ... 22 Mar 2010 07:09

adding vectors of different length
Hi all, I need to write a code for adding two vectors of different length, e.g. x=[1 9 8] and y=[2 0 4 9], treating the row vectors as integers. Any help will be appreciated. ... 22 Mar 2010 16:48