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How to calculate the second derivative of an unanalytically function
Why not just let |fmincon| use finite differencing? If that is not working, then it's possible that your function is disconti...

plus de 11 ans il y a | 0

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Butterworth filter does not exist in Matlab R2014b, on Yosemite OS X
|butter| is in the Signal Processing Toolbox so it's likely not installed with your R2014b. You can verify this by running: ...

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Copy figure to clipboard
>> print -clipboard -dbitmap Or >> print -clipboard -dmeta

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importing files automatically callback function error
|addlistener| automatically passes along two inputs, source and eventdata. You can either have your function ignore these or ...

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A résolu

Union of two set decreasing order
Union of two set decreasing order Say, x=[1 2 5] and y=[5 7 8] then answer must be [8 7 5 2 1]

plus de 11 ans il y a

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How I can produce a colour contour map?
contourf(M(:,:,3)) % all rows, columns and third page You should also consider using |contourm|. Otherwise your lat/lon da...

plus de 11 ans il y a | 0

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out of memory error!
Either buy a bigger computer with 64 bit OS and MATLAB, or downsample your data.

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Optimization and Machine Learning
Sequential feature selection is what it sounds like you're looking for. doc sequentialfs

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how can I connect java with matlab
You can use Builder JA to build java packages from your MATLAB analytics. <http://www.mathworks.com/products/javabuilder/>

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SolidWorks to SimMechanics Link
Do you have write-permissions to that directory? Try running MATLAB As an Admin (right-click on icon, run as admin)

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The output of refinemesh function. Is it always the same or a given mesh ?
Looking at the algorithm (bottom of the documentation page for |refinemesh| ) doc refinemesh I don't see anything that s...

plus de 11 ans il y a | 0

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what's the difference between | and || in matlab??
| applies to each element in the array, |||| applies to a scalar condition: [1 0 1] | [ 0 0 1] v. [1 0 1] || [ 0 0 1...

plus de 11 ans il y a | 2

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How to programmatically select a tab in a uitabgroup?
You can set it using SelectedTab of the uitabgroup: tg = uitabgroup; tt(1) = uitab('Parent',tg); tt(2) = uitab('Parent',t...

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Symbolic Integration, how to count when int can not compute?
Use the curve fitting app ( |cftool| ) or |lsqcurvefit| to fit to the data finding those coefficients. The use of a symboli...

plus de 11 ans il y a | 0

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Mixed Data Types In a Table
% Simulate data T = table(rand(10,1),categorical(cellstr(('rgbbrgrrbr').'))) % Convert to double and extract with {} ...

plus de 11 ans il y a | 1

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inputname with numeric inputs
There are ways to do it (sometimes), for example <http://www.mathworks.com/matlabcentral/answers/16693-within-a-function-get-...

plus de 11 ans il y a | 0

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Error (The value assigned to variable <variable_name> might be unused)
Usually for me, these warnings mean I have a typo. xxxxxx = 1:10 plot(xxxxx) You can click on the variable to highlight...

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How to execute statements within functions in a random order?
phoneorder = randperm(3); for ii = 1:numel(phoneorder) disp(phoneorder(ii)) switch phoneorder(ii) ...

plus de 11 ans il y a | 0

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importing data from a text file to matlab
Right click on the file and select "Import Data". Then select the data you want and import it. If you want to automate this, c...

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How to remove repeated values mantaining the first one from an array ?
abs(diff('0000111001111101101'))

plus de 11 ans il y a | 0

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Output class object inherits the property/value pairs of a figure
Giorgos, rather than writing a figure class, write two classes for the vertical and horizontal scrollbars. Then add them to the...

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Fun Question but Confusing! Convert Number to English phrase
I'd start here: <http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=english> And probably end u...

plus de 11 ans il y a | 0

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undefined function or variable 'th14'
th14=-1*(atan((0.08*cos(th12)-0.18-0.05*cos(th14))/(0.08*sin(th12)-0.05*sin(th14)))); This is the line where th14 is define...

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Problem with expiring student license
Your IT department is probably a good first bet since they might have an updated license file. If they don't, then call MathWor...

plus de 11 ans il y a | 0

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Change quiver arrow size and width in 2014
I don't know exactly what you want, but perhaps try changing the _AutoScaleFactor_ or the _MaxHeadSize LineWidth_ etc. propertie...

plus de 11 ans il y a | 0

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how to dynamically assign data to a variable
Dynamic and variable should really never be in the same sentence :) <http://www.mathworks.com/matlabcentral/answers/57445-faq...

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Delete line from subplot: Handles not known
Another thing you can do is set the line's _'ButtonDownFcn'_ to delete it. Then you can just click on the ones you don't want: ...

plus de 11 ans il y a | 0

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How can i get the divergence of vector field of a gray scale image??
doc divergence doc ndgrid Build a grid of every row/col page and then call divergence with these and your displacement v...

plus de 11 ans il y a | 0

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create a 3x3 cell array with random numbers
num2cell(rand(3))

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