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madhan ravi


Last seen: Today
4,488 total contributions since 2018

Communication through MATLAB is always better than arguing.

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Answered
Finding the index in two different arrays where values are closest
Note: Not tested. ix = abs(a(:) - b(:).'); [~, ID] = min(ix(:)); [where_a, where_b] = ind2sub(size(ix), id)

13 hours ago | 0

Answered
Multiplication of 1D and 2D vector to a 3D vector
C = repelem(B, 1, 1, max(A))

13 hours ago | 0

Answered
Multiplication of 1D and 2D vector to a 3D vector
[m, n] = size(B); C = zeros(m, n, numel(A)); for k = 1:numel(A) C(:, :, A(k)) = B; end C

13 hours ago | 0

Answered
Multiplication of 1D and 2D vector to a 3D vector
Sigh. Your question says one thing and your example does another thing. Only God know what you want. C = repmat(B, 1, 1, max...

13 hours ago | 0

Answered
Multiplication of 1D and 2D vector to a 3D vector
C = reshape(A, 1, 1, []) .* B % use bsxfun() if you’re version is prior to 2016b C = bsxfun(@times, reshape(A, 1, 1, []), B)...

13 hours ago | 0

Answered
Integrate an acceleration vector to obtain a velocity vector
Use cumtrapz() doc cumtrapz

14 hours ago | 0

| accepted

Answered
Imaginary Number Notation/ Formatting Real and Complex Results
The imaginary part might not be exactly zero. vpa(Answer)

3 days ago | 1

Answered
Find equal value in two cell arrays
Wanted = find(cellfun(@isequal, A, B))

3 days ago | 0

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Answered
Beginning matlab user error, functions
Take that fminsearch() outside of the function doc function % see how to use functions

3 days ago | 0

| accepted

Answered
row elimination problem.
A(all(A == 0, 2), :) = [ ]

3 days ago | 1

| accepted

Answered
sin() - Subscript indices must either be real positive integers or logicals.
clear sin % since it's a variable

3 days ago | 1

| accepted

Answered
How do I simplify the values of a function?
>> a a = 2 >> b b = 4 >> syms x f(x) = a*b + b*x f(x) = 4*x + 8 >>

3 days ago | 0

Answered
2 Scenario Legend Setup
plot(1:5, '-k') hold on plot(6:10, ':y') legend({'Leg 1', 'Leg2'}) %?

4 days ago | 0

Answered
draw a plot-graph
doc fimplicit3

4 days ago | 1

Answered
How to write delta in matlab?
<https://www.mathworks.com/help/symbolic/sym.dirac.html>

6 days ago | 0

Answered
I want to split a char array '1001' into 1 0 0 1 bits
'1001' - '0'

7 days ago | 0

Answered
Differential equations using ODE45
doc ode45 % have a read at the document

7 days ago | 0

Answered
How to get == to help solving equations
You should have the Symbolic Math Toolbox and the license for it to perform the above operation. In order to replicate your mess...

7 days ago | 0

Answered
How to use blkdiag in 3D matrix
A slight variation: M = cell(size(B, 3), 1); for k = 1 : size(A, 3) M{k} = blkdiag(A(:, : , k), B(:, :, k)); end M =...

7 days ago | 0

Answered
How do I add color to text output to the Command Window?
https://www.mathworks.com/matlabcentral/fileexchange/24093-cprintf-display-formatted-colored-text-in-the-command-wind

7 days ago | 0

Answered
Need help inputting my equation into MATLAB
In line f, M(t) causes the error perhaps you mean‘t M*t ?

7 days ago | 0

Answered
How to store value of for loop in a array
for z = linspace(0, 0.03, 31) By the way you don’t need a Loop it’s simply: A = 1 ./ (1 + ((z / aes) .^ 2))

8 days ago | 0

Answered
solve first-order ODE
ode = @(t, Y) sin( exp(Y - t/2) - t^2/2 ) ode45(ode, [0 2*pi], 0)

8 days ago | 0

Answered
Creating an array of dependent symbolic variable
A(x) = str2sym(regexprep(char(A), '(\_?\d)+', '$0(x)'))

9 days ago | 0

| accepted

Answered
splitting up numbers in a cell of a double
Wanted = vertcat(cell_array{:}) %or Wanted = cat(1, cell_array{:})

9 days ago | 0

Answered
How can I asign columns of a matrix to different matrixes?
permute(reshape(matrix, 154, 558, []), [2, 1, 3])

9 days ago | 1

| accepted

Answered
what's going on?
plot(A.' , '-x')

9 days ago | 0

Answered
テキストファイルから特定の行、列の読み込み
Use readtable()

9 days ago | 0

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Answered
substitute only first derivative in symbolic toolbox
I remember doing vibration analysis, used to be pretty tricky: expr2 = subs(expr, diff(x, 2), diff(v))

10 days ago | 0

| accepted

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