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madhan ravi


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3,459 total contributions since 2018

Communication through MATLAB is always better than arguing.

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Answered
int and subs function
Run: which subs -all which error -all In command window and paste the output here. It looks like you have a script na...

2 days ago | 0

| accepted

Question


Using least squares to find the x intercept.
I have a set of data points which represent the IV characteristics of a diode. I'm confused on how to get the threshold voltage ...

2 months ago | 1 answer | 0

1

answer

Question


Symbolic differentiation with respect to first derivative
Is it possible to make a derivative of an equation with respective to the first derivative . Illustration: syms x(t) eq...

2 months ago | 1 answer | 0

1

answer

Answered
Error using fsurf (too many functions) but success using ezsurf
Just vectorize the function and use function handles. To learn the proper usage of the functions that get you into a dilemma is ...

3 months ago | 0

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Answered
Error: Unbalanced or unexpected parenthesis or bracket
I think name is variable, it's simply (there is no need for eval): x = name(:,1); y = name(:,2); z = name(:,3);

3 months ago | 0

| accepted

Question


How to read this file in MATLAB?
I am having trouble reading the datas.

3 months ago | 2 answers | 0

2

answers

Answered
Indexing a Matrix with a for loop
for ii = 1:numel(z) % don't name variables i or j (because they are interpreted as imaginary numbers by default)

4 months ago | 1

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Answered
Delete element of an array on the basis of other arrays
U = T(Y>SETT)

4 months ago | 0

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Answered
How to enter this function
https://www.mathworks.com/help/matlab/learn_matlab/desktop.html

4 months ago | 0

Answered
Help on text and colours
https://in.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.line-properties.html https://in.mathworks.com/help...

5 months ago | 0

Answered
How can I combine all the column vectors in to one column vector
Don’t name variables , if you would have all the vectors as cells it would have been much easier. X =[x1,x2...,xn] Xmean...

5 months ago | 0

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Answered
Change value of states "active" to 1 and "rest" to -1
stats.state(ismember(stats.state,'rest'),:) = '-1'; stats.state(ismember(stats.state,'active'),:)= '1'

5 months ago | 0

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Answered
How to Create Vector Function File
I don’t have any suggestions on how to improve it for as for your confusion regarding the error message: In your first file E...

5 months ago | 0

Answered
foor loop add function values to an empty vector
How to use for loop to store values MATLAB ? [Google search]

5 months ago | 0

Answered
Index in position 1 exceeds array bounds (must not exceed 1)
clear all % you're probably shadowing the inbuilt function input()\fprintf() %or clear input fprintf

5 months ago | 0

Answered
How to implement a formula involving several elements of the same vector?
https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html - for better understanding peak_resolution...

5 months ago | 1

Answered
Symbolic Toolbox Integration Error
You probably have a variable named int, clear that workspace using: clear int %or clear all

5 months ago | 1

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Answered
How to get the index of a value in a table?
index = find(TABLE{:,:}==specific_value) %or [~,index] = ismember(specific_value,TABLE{:,:}) If you're dealing with decimals ...

5 months ago | 0

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Answered
Count in a loop
N = 100; % no loops needed p_x= -1+(1+1)*rand(N,1); p_y= -1+(1+1)*rand(N,1); p = sqrt(p_x.^2 + p_y.^2); fprintf('N...

5 months ago | 1

Answered
How to use cellstr() without losing whitespace character?
Wanted = num2cell(your_char_array,2)

5 months ago | 1

Answered
how to plot cell array
I don’t why you’re saying multidimensional cell array all I see in the picture is a cell array containing character array. ...

5 months ago | 0

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Answered
Store values from a for loop into a matrix
RARmat = zeros(65, 3) for ii = 1:65 RARatio = AUC/RA; disp(RARatio) % RAR Matrix RARmat(ii, :) ...

5 months ago | 0

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Answered
Creating a MatLab code to convert numerical grades into letter grades.
You should loop through mn and save the results as a cell array in a variable which is preallocated before loop using indexing. ...

5 months ago | 0

Answered
Showing error Matrix dimensions must agree
theta =0:2*pi:100; r=linspace(0,100,numel(theta)); % theta and r should have same length/ or either one be a scalar z=2*(r-4*...

5 months ago | 0

Answered
how to find how many elements are there in a cell of an array?
No_of_elements = cellfun(@numel, cells)

5 months ago | 0

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Answered
Assign values of a result to an input variable.
That’s not a good idea, see https://in.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dyn...

5 months ago | 0

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Answered
I keep getting a 'parse error' at '='
Change arctan() to *atan()* and y=0 to *y==0*. doc if

5 months ago | 0

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Answered
How to replace last row of matrix with a vector?
Tutorial

5 months ago | 0

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