Matlab

Vectorization Help...I think
Hi, I'm really new to MALTAB, I only sat the module this semester, but somehow I've managed to get myself a summer project writing a parallel evolutionary algorithm in it! Anyway I've done some basic profiling on my code and found that one line is accounting for about ~45% of my run time. It's a find function, b... 18 Jul 2010 11:36

processor simulator
i am very new to matlab and forgive me for my naiveness. I would like to know is there any simulation of 16/32 bit processor in matlab which could be used as a block with a simulink model? ... 19 Jul 2010 01:38

An exact simplification challenge - 96 (EllipticF/K/Pi)
Hello, Mathematica: 2*(-1)^(1/6)*(-2*I*EllipticF[I*ArcSinh[(-1)^(5/6)],(-1)^(2/3)]- (-1)^(1/6)*EllipticK[-(-1)^(1/3)]+EllipticK[1-(-1)^(2/3)]+ I*EllipticPi[(-1)^(1/3),(-1)^(2/3)]+ (-1)^(1/6)*EllipticPi[-(-1)^(2/3),-(-1)^(1/3)]- 2*I*EllipticPi[(-1)^(1/3),(-I)*ArcSinh[(-1)^(5/6)],(-1)^(2/3)]) Maple: 2*(-1... 20 Jul 2010 14:40

OQPSK with LLR supporting in simulink
Hi dears we are working on LDPC error correcting codes . modulation which we used in our channel , is OQPSK . at this way we faced to a problem : LLR ouput doesn't supported in OQPSK demodulation block . so we decided to simulate OQPSK block like "OQPSK Floating Point Signal Flow Diagram" in : " http://www.mathwor... 17 Jul 2010 14:08

Find text
I've got a variable which contains a lot of words (all in the first column). I need to find a specified word (let's say the word "interest"). When the variable contains this word, I need to know the row-number. What's the best/easiast way to do this? ... 17 Jul 2010 17:24

Convert 3D to 2D - vertical concatenation
I want to convert a 3D matrix to a 2D matrix. Say I have a 3D matrix as follows: a = rand(3,3,3) a(:,:,1) = 0.4966 0.6449 0.3420 0.8998 0.8180 0.2897 0.8216 0.6602 0.3412 a(:,:,2) = 0.5341 0.8385 0.7027 0.7271 0.5681 0.5466 0.3093 0.3704 ... 18 Jul 2010 00:55

MATLAB Mex Error
I hope you have figured out the problem. Did you dynamically link to fftw3.so? I ran into the same problem, and after searching it turns out that matlab has their own fftw3.so library that it loads before any thing in your LD_LIBRARY_PATH. I tried to link to this version (supplied by matlab) but it still crashed. So t... 21 Jul 2010 02:41

automatic number plate recognition
can u please send tne matlab code for nimber plate recognitio......its urgent..........mail me at akash.sarda02(a)yahoo.in ... 20 Jul 2010 19:04

parfor on 2009b
How do I take advantage of parfor for fft2 and ifft2 computations? On my Cray CX1-iws (each node has 8 cores, 24 GB RAM), the parfor-based calculation is always ~8-10 times slower (I tested for N = 128, 256, and 512). Is there any way I can speed up the computation? N = 512; u = randn(N,N,N); uf = zeros(N,N,N); ... 17 Jul 2010 10:52

Help on if-statement
Hello! I would like to do the following: A=zeros(2) is a predefined 2*2 matrix I want to fill this matrix to indicate the frequencies of 4 different events whose occurrence is evaluated in the course of a conditional statement that is nested in a for loop for i=1:10 if event_1 ==1 ... 17 Jul 2010 10:52