Answered
How to do Symbolic Optimization in matlab?
No, there is no function for that. For polynomials, you can proceed by dy = diff(y, x); extrema = solve(dy, x); d2y = diff(d...

2 days ago | 1

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Is there a way to lock the cursor on the graph?
https://www.mathworks.com/matlabcentral/fileexchange/3265-magnetginput

2 days ago | 0

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Error: Undefined function 'mtimes' for input arguments of type 'cell' -2
P1{io,jo} = NumericalFourierForce{io,1}{jo,1}(1:L/2+1); The assignment on that line would fail if P1 is an existing variable th...

2 days ago | 0

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Answered
How do i get the table to access all my iterative data?
%xi = iterations %ap = approximate value %pe = percet error recorded % pe desired 1*10^-5 x= -0.95; while(1) x...

2 days ago | 0

Answered
Given that you have the code below, how do you write a code to count the number of points in each quadrant with the attached data set
Supposing your two variables are named v1 and v2, then counts = accumarray([1+(v1(:)>=mean(v1)), 1+(v2(:)>=mean(v2))], 1, [2 2]...

2 days ago | 0

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How can I convert an image into a patch?
Would a surface be acceptable instead of a patch? If so then see warp() https://www.mathworks.com/help/images/ref/warp.html If...

2 days ago | 0

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Convert it into index type
[image_mat, cmap] = imread('flage.png'); if isempty(cmap) if ndims(image_mat) > 2 ...

2 days ago | 0

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Answered
Hoe to implement a listener that deletes its calling object?
The right way would probably be not to do that at all. Instead, put in a position constraint that prevents the ROI from moving ...

2 days ago | 0

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Image Grey to Color
B = imcrop(img,[1, 1, w, h_one]); What is the first row number that will be extracted when you do that? What is the last row nu...

2 days ago | 0

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Dimensions of matrices being concatenated are not consistent ?
I notice that you are using R2016a, so I will not mention some of the possibilities for later releases You cannot do that with ...

2 days ago | 0

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what does "parpool close force local" mean?
Something like, if numProc <= 1 p = gcp('nocreate'); if ~isempty(p) delete(p); end poolSize = 0; ...

3 days ago | 0

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Answered
Endpoints of drawline()
h = drawline(); ep = h.Position; x1 = ep(1,1); y1 = ep(1,2); x2 = ep(2,1); y2 = ep(2,2); https://www.mathworks.com/...

3 days ago | 1

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Answered
Tools used for Sparse Matrix Efficiency
used_count = ceil(n + X*Y*Z*6); A = spalloc(n, n, used_count); for i = 1 : n; A(i,i) = -6; end for ix = 1:X for iy = 1:Y...

3 days ago | 2

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Hex to binary character array
a = '8000000000200000000000000000000005e380924000012808800000c0000000000000000013f000111f0000000000000000'; b = reshape(dec2bin...

3 days ago | 1

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Export a matrix variable "losslessly" as a .txt file
If it is numeric, then dlmwrite() with '%.16g' If I recall correctly, save -double uses 15 digits instead of 16, but you could...

3 days ago | 0

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using fget1 to read text file. Need help sorting data
https://github.com/manromao/RINEX-reader

3 days ago | 0

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Simple assertion giving incorrect result?
Symbolic floating point values have some guard digits that are not displayed when you output the number

3 days ago | 0

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Unable to perform assignment because the size of the left side is 7-by-1 and the size of the right side is 7-by-7
The boundary conditions, h, will always be passed to the function as a column vector even if you initialize as a row vector. You...

3 days ago | 0

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Answered
i=1, 2, 3,,, However, when (a-i)> 0 is calculated.
for i = 1 : a - 1 station(i+2) = (4-(4-i))*N; end

3 days ago | 0

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Is this program free from bugs? The program is to find the position of the element greater than 100.
The program will not work properly if readings is two or more dimensional. The program will fail when it encounters the return ...

3 days ago | 0

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Answered
Bug in MATLAB evaluation of generalized hypergeometric functions (for relatively larger arguments)
Do not use inline() anymore. Use matlabFunction() or build an anonymous function or a symbolic expression or a symbolic function...

3 days ago | 2

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Answered
How to convert a char letter into a double which is still a letter.
If you are getting user inputs that are formula, then you should use str2func() to turn them into function handles. Alternately...

4 days ago | 0

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Answered
plot3 not functioning
When you "hold on" the view() is one of the things that is held. You are using hold on before you do any 3d plotting so the 2d ...

4 days ago | 0

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How long does the academic license last?
Term: Annual tells you that this is a one year license.

4 days ago | 1

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Answered
Solve Inequality with inequality constraints
There is no symbolic solution; the equations are too complicated for that. syms I I_opt real Q = @(v) sym(v); a = Q(0.17...

4 days ago | 0

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Answered
InstallForMacOSX doesn't work with my OS X 10.10.5. What should I do to install R2020a?
https://www.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/SystemRequirements-Release2017a_Macintosh...

4 days ago | 1

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Answered
handle character minus character
If you have a recent enough MATLAB version, pass the character vectors to duration() and then subtract one from the other. If y...

4 days ago | 0

Answered
How to build a symbolic function based on other symbolic functions´╝č
When you use a symbolic function (by name, with no parameters) with a binary operator, and the other operand does not involve sy...

4 days ago | 1

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Answered
Error Variable Spectrum has an incorrect value.
You did not emit newlines after the color names.

4 days ago | 0

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