Math Forum / Math Software / MATLAB / July 2008

I have two GUI's saved in one folder. I want GUI_2 to start
when one of the button in GUI_1 is pressed. Please let me
know how this can be done...

Please kindly correct me if I'm wrong.  
I have two variables of the same length obtained from a
measurement: A and B.
I took the two dimensional power spectral density by:

What is the fastest way to compute 50000 random
permutations on 10 symbols?
I had thought evaluating Z(50000,10), where
Z = @(m,n) arrayfun(@(o) randperm(n), 1:m, 'UniformOutput',

Hi,
I have a quadratic objective function like this:
y=a_0+a_1*x_1+a_2*x_2+...+a_n*x_n
 +a_12*x_1*x_2+.....a_n-1,n*x_(n-1)*x_n+

I have a bunch of variables labled var1,var2,var3....
i tried to create a cell array as i was running through the
function but i kept getting an empty array before the
indexed number.  Such that:

I am trying to do plot an isosurface, but I don't want any
tick marks.  I have included the line:
set(gca,'XTick',[],'YTick',[],'ZTick',[]);
in my code, but the exponent (i.e. the x 10^-8 part) won't

I have two integers with different length:
int1 = 82;
int2 = 34563409;
Basically I would like to Xor them together but then Matlab yields

i need to multiply two matrices of A(17,111,132) and B(4,17) over k that s from 1 to 17 (the B matrix variable).
how can i do this calculation in matlab? i tried repmat but cound not be able to solve it.
thanks

i need to multiply two matrices of A(17,111,132) and B
(4,17) over k that s from 1 to 17 (the B matrix variable).
how can i do this calculation in matlab? i tried repmat
but cound not be able to solve it.

I'm new to Matlab so excuse me if this is a stupid question :)
Suppose I have X = [0 6 2 9 9 12 15]
And I want to get a vector which has ones for values between
3 and 10 and everything else a zero. So the new vector is then:

I loaded and used dll with Matlab2007b. All worked fine.
After I tryed the same script in Matlab2008a, it get
crashed. With following message:
Saving minidump to file

Hi this is a stupid question, but is there a short method to
convert a vector into a cell like xd={'0','0.5','1'}. I know
the code below works but its awful. There must be some
simple sprintf command to do it in one line? In the

I'm trying to include the external ACML maths library in a
MEX file that I'm compiling.
The libraries are in /usr/local/acml/gnu64/lib/ and I have run:
export LD_LIBRARY_PATH=/usr/local/acml/gnu64/lib

Just a quick and easy question. Is there a function in matlab that
returns me how many ones are in the binary representation of a decimal
number (which is the hammingweight)? Or do I need to quickly write my
own routine?

I appreciate any comment or suggestion,
I’m trying to capture real-time video and log it to disk
using the image acquisition toolbox (V3.0). Unfortunately,
runtime error happens after few minutes  because the video