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Q: solving ax=0 with regularization?
There is a package called <http://www.mathworks.com/matlabcentral/fileexchange/52 regtools> in the File Exchange that might help...

14 years ago | 0

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Amend code to save file in a different format
You could use this code: fid = fopen('example.txt','w'); fprintf(fid,'%i %i %i %i %i %i %i\n',D); fclose(fid); If you ...

14 years ago | 0

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Hole filling by interpolation method?
If your data are irregularly spaced, you could try using <http://www.mathworks.com/help/techdoc/ref/triscatteredinterpclass.html...

14 years ago | 0

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Sym
Use <http://www.mathworks.com/help/toolbox/symbolic/vpa.html vpa>, e.g., c = vpa(a*b,4)

14 years ago | 1

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Colorbar in an other figure...
The *really* simple way to do it is to just grab the bar with the mouse and move it. Do you want to automate this? If you do ...

14 years ago | 0

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Display Text Without Formatting
You can replace all the occurrences of |href| by |HREF| for display: str = {'<a href="test">TEST1</a>';'<a href="test">TEST...

14 years ago | 0

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text to annotate figure
Sounds like you might want to use <http://www.mathworks.com/help/techdoc/ref/legend.html legend>.

14 years ago | 0

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Get the "handle number" of a standard handle class
Setappdata seems best because of the limitations on using the UserData property (see <http://www.mathworks.com/support/tech-note...

14 years ago | 1

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visualization of 3D matrix: how do I swap the y and z axis?
You can use <http://www.mathworks.com/help/techdoc/ref/permute.html permute> to rearrange the order of the dimensions and <http:...

14 years ago | 2

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Matlab Array Division
It's just d2 = 200./d1; Note the dot. This is element-by-element division (see <http://www.mathworks.com/help/techdoc/re...

14 years ago | 1

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How to remove this error Improper assignment with rectangular empty matrix.
I can't reproduce your exact error message, but it is probably occurring because either |va| or |vb| are empty (there weren't an...

14 years ago | 0

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nicer outcome from fprintf
There are two approaches you could use. One is just to specify the width of each field: fprintf(fid{i},'%12s\t%12s\t%9.6f\n...

14 years ago | 0

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Answered
what is the normalizings in generalized eigvalues in matlab
The documentation for |eig| says that the vectors are not normalized. *EDIT*: <http://www.mathworks.com/help/techdoc/ref/qz.h...

14 years ago | 0

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wrapping
You could save the changes when you unwrap and then reverse them: pw = unwrap(pold); pdiff = pw-pold; ... % change pw her...

14 years ago | 1

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What are the rules for naming script files?
Check out <http://www.mathworks.com/help/techdoc/matlab_prog/f10-60729.html Variables> and the documentation for <http://www.mat...

14 years ago | 0

14 years ago | 0

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For loop of symbolic variables extracting symbolic coefficients
See <http://www.mathworks.com/matlabcentral/answers/242-how-to-generate-symbolic-variables-dynamically-at-run-time How to genera...

14 years ago | 0

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matrix values as text on plot
You could do all the text commands in a loop, for example: A = randn(20); x = linspace(0,1,20); y = x; pcolor(x,y,A); col...

14 years ago | 0

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Why your question is NOT "urgent" or an "emergency"!
Just for curiosity, has anyone seen a genuinely urgent question?

14 years ago | 2

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program that calls itself
See <http://www.matrixlab-examples.com/recursion.html Recursion - a conceptual example>.

14 years ago | 0

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symprod error
Are you sure you have the Symbolic Toolbox? Try typing |ver| and see if it is one of the ones listed. If it is listed, maybe ...

14 years ago | 0

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font problem ??
The default interpreter is actually TeX, and maybe that is causing your problem. Try this: h2=ylabel('$k^2/(2 \pi)$') set(...

14 years ago | 0

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Help with fsolve in for loop!
The source of the error is probably your references to |x(1)| and |x(2)|, because you have defined |x| as a scalar in |syms x|. ...

14 years ago | 0

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Semiautomatic complex-step differentiation of real-valued functions
There is another implementation in <http://www.mathworks.com/matlabcentral/fileexchange/11870-numerical-derivative-of-analytic-f...

14 years ago | 1

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LEGEND TITLE
There is a lot of information buried in layers of handle graphics. You can do the following: hleg = legend('820mm','750mm',...

14 years ago | 4

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problem with command solve inside a function.
When I try running this function function [a,tt] = runtest(ka,landa) [a,tt] = test(ka,landa); I get the same answer for...

14 years ago | 0

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14 years ago | 0

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contourf with no isoline
Here is an example of how to do it: [C,h] = contourf(peaks(20),10); set(h,'LineColor','none')

14 years ago | 8

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Integration problem
You can calculate integrals with limits of |-Inf| or |Inf| using <http://www.mathworks.com/help/techdoc/ref/quadgk.html quadgk>....

14 years ago | 0

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rearranging the data in separate columns when difference of 10 is found in vectors
You could do this using a cell array: % preallocate array n = ceil(max(x)/10); y = cell(n,1); % populate it for ...

14 years ago | 0