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J Philps

MathWorks

Actif depuis 2017

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Each number on telephone keypads, except 0 and 1, corresponds to a set of uppercase letters as shown in this list: 2 ABC, 3 DEF, 4 GHI, 5 JKL, 6 MNO, 7 PQRS, 8 TUV, 9 WXYZ Hence, a phone-number specification can include uppercase letters and
Here is a sample: function asNumbers = convertPhoneNum(asLetters) % Make a cell array where each cell represents the...

plus de 7 ans il y a | 0

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How to change the Jacobian settings (full, fixed, lumped) when using solvepde?
You are right, Jacobian selection option is no longer supported in the new workflow introduced since R2016a. Note that even in p...

plus de 7 ans il y a | 0

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Remove gray lines from Boxplot Extrememode
You can access the individual lines in the axes if you wish (and you can set their Color property to [0 0 0]). Here is an exa...

plus de 7 ans il y a | 0

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How can I select the specific area between two pictures using feature detection?
I agree with KSSV, the simplest way to perform this operation would be to crop your images (using 'imcrop') to the desired detec...

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How can I solve a PDE with Fast Fourier Transform in matlab (my problem has three dimensions X, Y, Z)?
The documentation for fftn contains examples of its use: https://www.mathworks.com/help/matlab/ref/fftn.html?s_tid=srchtitl...

plus de 7 ans il y a | 0

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Java error to read pdf file
Overall that error message seems to be indicating that load is not a valid method name (or the input is not in the expected form...

plus de 7 ans il y a | 0

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How to load .mat file into workspace using Matlab Engine API for python?
There are two things you may want to try: 1. use the function syntax (not command syntax) for load: eng.eval("load('path...

plus de 7 ans il y a | 0

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how to check a precision and a recall if I have a database of 10 gestures each containing different number of images?
This File Exchange code may be of use to you: https://www.mathworks.com/matlabcentral/fileexchange/21528-precision-recall-and-r...

plus de 7 ans il y a | 0

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How do I get a cursor location in a pcshow figure?
The reason for this warning is that, by default, the pcshow plot turns the 'Rotate3D' setting on (so that you can view the point...

plus de 7 ans il y a | 0

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There is no linear analysis tab in control design
I am somewhat unclear on your question, but perhaps this documentation will be of use to you: https://www.mathworks.com/help/...

plus de 7 ans il y a | 0

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Colorbar doesn't show colours the right way round?
Walter was on the right track with his suggestion, but I believe you want to flip the colormap of the colorbar. Here is code dem...

plus de 7 ans il y a | 0

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Best way to implement a multi-view workflow in App Designer, MatLab 2016b
Another option would be to keep track of all the buttons in each 'page' of settings (maybe through a struct or something similar...

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Optimization terminated: average change in the penalty fitness value less than options.FunctionTolerance but constraints are not satisfied.
Here is some documentation containing suggestions for when the solver converges to an infeasible point: http://www.mathworks....

plus de 7 ans il y a | 1

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How to extract colorbar value of all pixels in figure?
The color data can be accessed through the CData of the Image. I have modified your sample code to populate the variable 'spectD...

plus de 7 ans il y a | 1