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4,220 total contributions since 2018

Communication through MATLAB is always better than arguing.

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Undefined function or variable 'imnlmfilt'
It requires Image Processing Toolbox and a valid license for it. Contact your IT department in your University to get the licens...

19 hours ago | 0

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Solving symbolic trig equation in terms of theta, using "sol."
The solution is returned in a struct so to access it you need to use the dot. It has occurred that there are two solutions?

1 day ago | 0

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How to convert a char into double?
sscanf(f,'%d')

2 days ago | 0

lines through markers on legend
x = -10 : 0.1 : 10; y = cos(x); plot(x, y, '--o', 'MarkerSize', 5) hold on y = sin(x) plot(x, y, '--d', 'MarkerSize',...

2 days ago | 1

How to create function handle with matrix inputs, vector output?
FCN = @(x) x(:, 1) + x(:, 2); sum(in, 2) % ??

3 days ago | 0

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"str2sym" delete the element wise operation
doc matlabFunction

3 days ago | 1

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How to replace multiple elemets at particular index in vector ?
a(3 : 2 : 7) = [.7, .1, .9]

3 days ago | 1

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extract num and den from matrix transfer function
Use it inside the loops, preallocation is recommended for the variables.

3 days ago | 0

How can i get the last element of a maxium with the help of findpeaks?
<https://www.mathworks.com/help/signal/ref/findpeaks.html#bufhxsk-2> It states: _“For the flat peak, the function returns ...

3 days ago | 0

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Error 'Array indices must be positive integers or logical values.' when the number of indices is large
In this case it’s probable that b has elements less than 1 and greater than 32. Outside_bounds = nnz((b < 1) | (b > 32)) % t...

5 days ago | 0

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fzero or fplot function
The anonymous function should perform element wise operations (warnings for fplot) and (errors for fzero).

5 days ago | 0

How parentheses effects multiplication with pi ?
In the first the order of operation is from left to right. In the second the order of operation is inside the parenthesis and...

5 days ago | 0

How do I delete my account?
Contact MathWorks Support Team.

6 days ago | 0

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how to label strings in an array with an ID
T = cell2table(StringID(:, 2)); T.Properties.RowNames = StringID(:, 1); Wanted = T{num2cell(tc), :}

6 days ago | 0

Error while plotting matrix of complex numbers
plot(real(sub), 'r-', imag(sub) ,'b*');

6 days ago | 0

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Variable for loop storage
low = A(lowPs, :)

6 days ago | 0

Variable for loop storage
low = cell(numel(lowPs), 1); for k = 1 : numel(lowPs) B = A(:,1) == lowPs(k); %%row numbers in A where A(:,1) that co...

6 days ago | 0

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random matrix with a given number of specified elements
v = [repelem(1, 5), repelem(0, 4)]; Wanted = v(reshape(randperm(numel(v)), 3, []))

7 days ago | 1

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How can I randomize the order of a matrix of images
Filenames = compose('image%d.png', 1:4); Filenames(randperm(numel(Filenames))) % ?

7 days ago | 0

Using Surf function with matrix
surf(C)

8 days ago | 0

Plotting in 3d
doc fsurf

9 days ago | 0

wrong differential equation solution
a1 = matlabFunction(simplify(sol)); a = matlabFunction((1/80)*(36*exp(-t)-35*cos(t)-cos(3*t)+125*sin(t)-3*sin(3*t))); t ...

9 days ago | 1

Livescript: equation number
No, the workaround would be to use section titles.

9 days ago | 0

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MATLAB assigns zero to the previous indices, for better understanding: clear a a(11) = 1; % now you will see elements fro...

9 days ago | 1

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How to remove array items that include a certain substring?
v = regexprep(filetable, '^[a,b].*', ''); v(cellfun('isempty', v)) = []

10 days ago | 0

w = u_1 * u_2 - u_3 * sym(u_4) Click on the tag floating-point.

10 days ago | 1

How can I get maximum and minimum value with sym variables
Use matlabFunction() and fminbnd() to find the minimum value of that function and to find the maximum extreme use negative sign ...

10 days ago | 0

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Sorting a matrix using it's index
Asort2 = A(sub2ind(size(A), repmat((1:size(A,1)).', 1, size(A,2)), idA))

10 days ago | 0

How to reshape matrix 2 columns by 2 columns
First = matrix(:, 1:2:end); Second = matrix(:, 2:2:end); Wanted = [First(:), Second(:)]

10 days ago | 0