Matlab

Some clarifications needed in simulink asynchronous machine model
Hi, I am using asynchronous machine model available in the simulink library. If you go on looking under the mask of the block, There are some gain parameters like: SM, SM.web,SM.Lr,SM.Laq, SM.Lad...... From looking at these I can say what some variables mean like SM.Lr as rotor inductance (correct me if wrong). ... 8 Jul 2010 09:08

truncating negative numbers
Hi, say I have the following three negative numbers: -151.5 -48.78 -32.23 and I just want to truncate it so that the negative integer part remains (removing the decimal). I do not want to round or floor it. And as the number size varies (151, 48, 32), I cannot use precision either... the result should look lik... 8 Jul 2010 09:08

truncating negative numbers
Hi, say I have the following three negative numbers: -151.5 -48.78 -32.23 and I just want to truncate it so that the negative integer part remains (removing the decimal). I do not want to round or floor it. And as the number size varies (151, 48, 32), I cannot use precision either... the result should look lik... 8 Jul 2010 11:22

Matlab recognition of functions
Hi, All the sudden, Matlab gives me errors of the kind "Undefined function or method 'makeinput' for input arguments of type 'struct'.", in a directory and with functions that have be working still this morning (I get it for several functions). I checked the function makeinput, created a new directory ect. Still th... 8 Jul 2010 09:08

why i m getting error...,?? Undefined function or variable
?? Undefined function or variable 'Avg_Gk'. Error in ==> myfunctions at 9 avg(i)=Avg_Gk; please explain in detail. ... 8 Jul 2010 09:08

Simulink: Prevent block resizing/moving (callback recursions)
Hi, i am trying to facilitate a mechanism to lock blocks in Simulink, so that users cannot move or resize them. My approach is to catch the "MoveFcn" callback (which is triggered when a block was moved or resized), and set the blocks position to the previously stored value. Simulink recognizes, that setting the '... 8 Jul 2010 08:02

Change the pixel value
I have a project for school. It's like curves in photoshop.i have to change the balance of white and black so that the contrast of the image to be correct. I have to read the pixels from a RGB image.select 5 point to determine my curve and make a new image from the first image but with the correct contrast changing... 8 Jul 2010 11:22

exange data with a simulink model from matlab
hi tehre i am trying to model a baseband modem. my approach could be to create a simulink model of the transmitter and a digital model of the receiver and then executing a simulink simulation step for each frame(or for ach simbol) for fr=1:NrOfFrames <put data into tx_bb model> sim('tx_bb', 1./Fs); <... 8 Jul 2010 08:02

isolating a column based in a matrix
Hi Everyone, Suppose I have a matrix A = [1 3 4 6; 10 9 30 23] now I wish to perform an operation, so that I create B = [3 9] Note that B contains the column of A where the second row value is smallest. How is this done? Ulrik. ... 8 Jul 2010 10:15

affine registration minimization with LTS
Hi all, I ran into a problem, which is partly related to matlab, but it means a hard task to me. It is due to the fact that I'm not a linear algebra expert at all. There are two 3D MR images, let's say X and Y, which need to be registered via affine transformations. Former computations showed some correspondence... 8 Jul 2010 08:02