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Using the Matlab builder, I compile a Matlab .m function doing the sum of two vectors into an XL add in. Then I install the add in. But when I try to use the function, I get the following message: "Error in prova.Class1.1_0". What am I doing wrong? I use Matlab 2012a and the related compiler to build my xla. The XL version I use is the 2002 one...

How can I divide my video by some pictures in matlab?
for example 100fps or more ?

how to store multidimensional array in a single column in mysql database through MATLAB?

GChoose your favorite images, and add noise to them, either scratches, as described above, or salt and
pepper noise. Adapt the damage detector so that you can choose whether to turn it on when the discon-
tinuity is detected only on one layer, on all three layers, or on some average computed on all the three
layers, and restore the image. Start with the algorithm applied only on horizontal slopes, as described in
this paper, and improve it adding also a check on vertical slopes.
1. Next, modify the threshold, and plot the error between the original image and the restored image,
as a function of the threshold. Which of the given norms seems to give results coherent with what
your own eyes can see?
2. Does the optimal threshold depend on the amount of salt and pepper noise that you add to the
image?
3. Do you get better results if you diagnose a damaged pixel using information from all neighboring
pixels?
4. What is the color of nothing? I mean: you compute the error by subtracting the original and the
repaire

A= {2,4,6,8};
B= {1,2,3,4};
C= A[1] + B[2];
D= A[2] - B[1];

A[3]= ?
B[2]=?
C=?
D=?
A-B=?

How to make link between crc generator code and error-detecting code so that it can run smoothly?
For reference, my crc generator code is-
% The program generates CRC code for any given input message stream &
% generator polynomial
%msg=[1 1 1 0 0 0 1 1 ]
msg=input('Input Message sequence :');
%poly=[1 1 0 0 1 1]
poly=input('Input Generator Polynomial :');
[M N]=size(poly);
mseg=[msg zeros(1,N-1)];
[q r]=deconv(mseg,poly);
r=abs(r);
for i=1:length(r)
a=r(i);
if ( mod(a,2)== 0 )
r(i)=0;
else
r(i)=1;
end
end

crc=r(length(msg)+1:end)
frame = bitor(mseg,r)

Lcal variables are variables that are shared ?

UNIX operative system is based on C++ ?
A Matlab program does not need formal compilation?
LINSPACE is used to create a vector with elements equally spaced?

I want some expert who colud tout me how to use classregtree in correct way
Thank you

3. With considering the following algorithm for computing pi:

I. Set a = 1, b = 1/sqrt(2), t = 1/4 and x = 1

II. Repeat the following commands until the difference between a and b is within some desired accuracy:

y = a
a = (a + b)/2
b = sqrt(b*y)
t = t - x*(y - a)^2
x = 2*x

III. From the resulting values of a, b and t, an estimate of pi is

Pi_est = ((a + b)^2)/(4*t)

How many repeats are needed to estimate pi to an accuracy of 1e-8? 1e-15?