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Not able to plot a particular relation.
Remove all the "syms" call. They are not required.

1 year ago | 1

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How to export script to text file ?
export() does not support writing data into files. Use writematrix instead - a = "good"; b = "morning"; c = "babynumber"; ...

1 year ago | 0

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Having issues with plotting and supposedly there is a size problem?
(I assume that you have written this code for an assignment, which requires the variable x to be of size [1 200], which should b...

1 year ago | 0

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Plot can no longer recognize my variable
Because there is no such variable named yModel before that plot() is called. You have made a typo, it should be yB_Model. Al...

1 year ago | 0

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how to generate random number
randi only generates integers. Use rand instead. rand() generates numbers in the range (0,1). Get the desired range by modifyin...

1 year ago | 0

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Trouble with handling values in anti-diagonal of a square matrix
1 - Preallocate using ones() instead of zeros() and remove the else part. 2 - Update the condition for checking the anti-diagon...

1 year ago | 2

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Plotting a function inside of another function with no outputs
Firstly, do not use built-in functions as names for variables (or scripts for that matter). You are using plot as a variable nam...

1 year ago | 1

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How can I integrate by using bessel function
You need to provide the integrand as a function handle, see here - https://in.mathworks.com/help/matlab/ref/integral.html#btbbkt...

1 year ago | 0

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how to get multiple values of multiple columns from a single column?
Use logical indexing - Find Array Elements That Meet a Condition, for columns 2-100 (Assuming the value 40 occurs same number o...

1 year ago | 0

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Making loop for a function 'xlsread'
Use readmatrix instead of the deprecated xlsread(). q = dir('Data/*.csv'); nfiles = numel(filenames); for k=1:nfiles %...

1 year ago | 2

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Answered
Solve is not providing correct solution
When you use vpa on symbolic numbers, you lose precision. When you convert the symbolic numbers to double precision values usi...

1 year ago | 1

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the matrix only works till days= 16 then when the days=17 or bigger the output is 0 on all the values in the matrix
In the default display format (i.e. short), the numbers are displayed with 4 digits after the decimal. Thus when the differenc...

1 year ago | 0

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How to interpolate only NaN values with one hole?
fillmissing is a better fit here - %Note that the data you have provided is not valid %I have added another element to make i...

1 year ago | 2

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Answered
How to vectorize this nested for loop?
%Original Approach b=0; min1 = 1; max1 = 1; pair = []; for n = -min1:max1 for m = -min1:max1 if n+m...

1 year ago | 1

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Answered
Can't quite figure out why my syms is giving me an error
The error is not with the symbolic part of your code, but how your code is arranged/structured. If any function(s) is(are) defi...

1 year ago | 1

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Answered
Finding array index for a given array element does not work all the time
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. See this threa...

1 year ago | 0

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I can't really find why matlab won't plot this equation, I run into an error as soon as i try to run it
You need to use times, .* for multiplying arrays (of compatible sizes) element-wise - As the error states, mtimes, * is reserv...

1 year ago | 1

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getting the nth term out of a sequence
As @Walter has warned, a carriage return character (\r) is being read along with the data - % Define the input and output file...

1 year ago | 1

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Changing from logarithmically spaced
fs = 20e3; numFilts = 32; filter_number = 5; order = 4; CenterFreqs = logspace(log10(50), log10(8000), numFilts); figure p...

1 year ago | 0

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I am trying to input my found critical point into the second derivative, but when I double it to get an actual value, I get an array of zeros.
"... but when I double it to get an actual value, I get an array of zeros." That is because dW is defined as an equation, not a...

1 year ago | 0

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Answered
How to simplify a symbolic expression sum of terms involving the Heaviside function
For that you have to assume the same for 'm' as well - sympref('HeavisideAtOrigin', 1); syms m n positive integer s(n) = sym...

1 year ago | 0

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Answered
how to download & install cvx_begin toolbox
Follow the instructions provided here - https://cvxr.com/cvx/download/

1 year ago | 0

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trying to write complex equation with parentheses
You were missing a pair of parenthesis - syms gamma M k = gamma; Ma = M; % ...

1 year ago | 0

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条件に沿って数値を変換する
%Random data for example in = randi(11, 1, 10) out = discretize(in, 0:11, [1 2 2 2 2 3 4 3 4 3 4], 'IncludedEdge', 'right')

1 year ago | 2

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What is the fourth array element denotes (specified as NaN in code below) in the input to fcm function of matlab 2019?
From the documentation of fcm(), for the syntax [centers,U] = fcm(data,Nc,options) - "If any element of options is NaN, the defa...

1 year ago | 1

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Answered
How to define a for loop for given FINDPEAKS problem ?
Try this - n=3; B = [num2cell(A,1); cell(n,2)] for k=2:n [B{k,1}, L] = findpeaks(B{k-1,1}); B{k,2} = B{k-1,2}(L); ...

1 year ago | 1

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List of increasing integers
dim = [2 2 4 2 2 2 2 2 2 2 2 2] int = 1:sum(dim) out = mat2cell(int, 1, dim)

1 year ago | 1

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Answered
Saving all variables in a single file (ideally an excel file)
One option is to save all the variables in a workspace to a .mat file. On the Home tab, in the Variable section, click Save Wor...

1 year ago | 0

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Generate a logarithmic regression of xlsdata and plot it
That is not how you access data inside Tables. Go through this for more information - Access Data in Tables %% Provide the file...

1 year ago | 2

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Answered
Plot coordinates of a tif image
Try specifying the 'CoordinateSystemType' as 'geographic'. https://in.mathworks.com/help/map/ref/readgeoraster.html#mw_d0892e...

1 year ago | 1