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# Michael

47 total contributions since 2008

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Responded

Re: Complex Upper Incomplete Gamma Function?
Well, I found out that the old incomplete gamma function (allowing complex arguments) often has poor convergence. Probably, this...

4 years ago | 4137 views

Responded

Re: Complex Upper Incomplete Gamma Function?
Now, I found out, that there was a gammainc function (ver. 2001/04/15 12:01:47) implemented within an older MATLAB (a friend of ...

4 years ago | 4137 views

Responded

Re: Complex Upper Incomplete Gamma Function?
I also need the incomplete gamma function! E.g. to evaluate int sin(q*x)*x^a dx a: real anayltically. The solution is given...

4 years ago | 4137 views

Responded

Re: Speeding up Matlab code (converting sums into matrix notation)
Correction / Details: 1. Rij contains zeros on the diagonal, such that sin(0)/0 = 1. (Rij is a distance matrix and for i=j the ...

4 years ago | 1716 views

Posted

Speeding up Matlab code (converting sums into matrix notation)
Dear Matlab users, consider following calculation sum_{i=1}^N sum_{j=1}^N sin(q(k)R(i,j))/(q(k)R(i,j)) where q is a vect...

4 years ago | 1716 views

Responded

Re: How to Create a NON-RESIZABLE GUI that displays properly on all screen resolutions?
The code will enlarge the window over two screeens, if you have two screens connected to your computer! CU Mike

4 years ago | 5400 views

Posted

Matlab bug with axis tight and log-scaling of axis!?
Hello! This must be a bug, or!? The following code is ok if I active the cursor mode and trace the curve. x = linspace(0,2*pi...

5 years ago | 1975 views

Responded

Re: speeding up for-loops via Mex-file programming
Well, the function f(x,a) might be a very time consuming one as also one wich is very fast to calculate. The "user" will decide....

5 years ago | 3781 views

Posted

speeding up for-loops via Mex-file programming
Hello! I have a question regarding optimization of a loop. In a recent Matlab-Seminar, it was demonstrated how the efficiency ...

5 years ago | 3781 views

Responded

Re: lsqcurvefit and parallel jacobian calculation
Hello Matt! 1. I am also using fmincon, but in case of bound-constraints the lsqcurvefit algorithm is faster and more stable. O...

6 years ago | 3414 views

Posted

lsqcurvefit and parallel jacobian calculation
Hello! I wonder why there isn't the option of calculating the jacobian in parallel in the lsqcurve-fitting algorithm!? I would...

6 years ago | 3414 views

Responded

Re: Changing Multiple Cells in Uitable
Yippi :-) That's great and exactly what I needed! Many, many thanks Mr. Altman! Best regards, Michael

6 years ago | 12078 views

Responded

Re: Changing Multiple Cells in Uitable
Hello! I have nearly the same problem! I just want to change the color of a specific cell in a table (independ of the value wh...

6 years ago | 12078 views

Responded

Re: GUI table - how to change font for *some* cells?
Hello! I also need such a solution!? Maybe undocumented Matlab might help but I do not know how? Ciao, Michael

6 years ago | 6837 views

Posted

besselj and parallel computing on GPU
Hello! I miss the bessel-functions (e.g. besselj) for parallel computing on GPU? Why doesn't it exist? Is there an easy way to...

6 years ago | 2688 views

Responded

Re: communication in parallel optimization routine
Thanks I have read this too and I am aware of this! The thing is that I am not interested in plots after each iteration of the p...

6 years ago | 2057 views

Responded

Re: communication in parallel optimization routine
I have to solve a large differential equation system within the objective function that is non non-smooth because of numerical d...

6 years ago | 2057 views

Responded

Re: communication in parallel optimization routine
I use the patternsearch algorithm with the option 'UseAlways'. The Matlab help says that in this case a parfor loop is used with...

6 years ago | 2057 views

Posted

communication in parallel optimization routine
Hello! I use the patternsearch algorithm (global optimization toolbox) in parallel mode (parallel computing toolbox). Since the...

6 years ago | 2057 views

Responded

Re: Standalone Parallel Computing
Hello! I am also puzzled about the fact, that it is not possible to run a parallel task in a compiled program using the local s...

6 years ago | 8227 views

Posted

lsqcurvefit, jacobian
Hello, I wonder why there is now option for calculating the jacobian matrix in parallel mode (UseAlways == true) in the lsqcur...

6 years ago | 1167 views

Responded

Re: matlabpool open failure
Hello Edric, Yes, both OS are in German and on both computer is a Matlab 2010a Student Version. On the Dell computer, there was...

6 years ago | 11437 views

Responded

Re: matlabpool open failure
Hello Edric! Many thanks it is working, now! :-) Nevertheless it seems to depend on the OS and the Computer, since I have insta...

6 years ago | 11437 views

Posted

matlabpool open failure
Hello! I have tried to open a matlabpool with the command: matlabpool open 4 It fails and I got the message: ??? Error using =...

6 years ago | 11437 views

Responded

Re: How do I set uitable focus?
Please, I also need a solution!

6 years ago | 5395 views

Responded

Re: How do I set uitable focus?
me too!!

7 years ago | 5395 views

Posted

cell array in uitable
Hello! I try to use a uitable, that contains data from a cell array, which especially means that some fields may contain double...

7 years ago | 2855 views

Posted

ordinary differential equations and parallel optimization toolbox
Dear all! I would like to know if there is a way to use the Parallel Computing Toolbox for solving ordinary differential equati...

7 years ago | 913 views

Responded

Re: parallel computing, extreme slow code execution
Well, below you will find a function which you can execute. It is a reduced code fragement of the original code. In the original...

7 years ago | 3040 views

Posted

parallel computing, extreme slow code execution
Hello everybody! I have a simple for-loop and I changed it to a parfor loop: .... numberOfSplines = length(rSupportPoints); B ...

7 years ago | 3040 views