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How to Convert 3d matrix to row matrix???
a=rand(2,2,2) % a sample 3D matrix a b=a(:)' % is turned to the 1D row matrix b
How to Convert 3d matrix to row matrix???
a=rand(2,2,2) % a sample 3D matrix a b=a(:)' % is turned to the 1D row matrix b
約4年 前 | 2
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Plot the trapeoidal waveform using given equations
syms theta y=piecewise(... 0<=theta<2*pi/3,1,... 2*pi/3<=theta<pi,(1-6/pi*(theta-2*pi/3)),... pi<=theta<5*pi/3,-...
Plot the trapeoidal waveform using given equations
syms theta y=piecewise(... 0<=theta<2*pi/3,1,... 2*pi/3<=theta<pi,(1-6/pi*(theta-2*pi/3)),... pi<=theta<5*pi/3,-...
約4年 前 | 0
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How to draw an ellipse
The code discussed at https://www.mathworks.com/matlabcentral/answers/497966-how-to-find-the-vertical-height-of-an-ellipse-y-axi...
How to draw an ellipse
The code discussed at https://www.mathworks.com/matlabcentral/answers/497966-how-to-find-the-vertical-height-of-an-ellipse-y-axi...
約4年 前 | 0
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Eigenvalues corresponds to eigenvectors
Absolutely standard: L(k,k) ~ V(:,k). You can check it with the code: for k=1:size(h,1) disp(strcat('k=',num2str(k),'; h*v-la...
Eigenvalues corresponds to eigenvectors
Absolutely standard: L(k,k) ~ V(:,k). You can check it with the code: for k=1:size(h,1) disp(strcat('k=',num2str(k),'; h*v-la...
約4年 前 | 0
| 採用済み
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Subs Command for Multivariable Function
If e^ is the exponent and if you want to estimate the result numerically (from the question it is not quite clear what you want)...
Subs Command for Multivariable Function
If e^ is the exponent and if you want to estimate the result numerically (from the question it is not quite clear what you want)...
約4年 前 | 0
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Partial least-squares regression evalutaion
The equation considered in PLS of Matlab is rather Y = X(:,:)*B(2:end,:) + repmat( B(1,:),n,1 ) + E, where: X is an n-by-...
Partial least-squares regression evalutaion
The equation considered in PLS of Matlab is rather Y = X(:,:)*B(2:end,:) + repmat( B(1,:),n,1 ) + E, where: X is an n-by-...
約4年 前 | 0
| 採用済み
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Normalization of complex eigenvector
You probably want V(:,1) = V(:,1)/norm(V(:,1)); Besides, if your theta and phi are supposed to be real, the overall computatio...
Normalization of complex eigenvector
You probably want V(:,1) = V(:,1)/norm(V(:,1)); Besides, if your theta and phi are supposed to be real, the overall computatio...
約4年 前 | 0
| 採用済み
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Eigenvector without calling eigenvalues
This is not an error but a warning that you do not use the eigenvalues, which influences nothing. If you want to avoid it, subst...
Eigenvector without calling eigenvalues
This is not an error but a warning that you do not use the eigenvalues, which influences nothing. If you want to avoid it, subst...
約4年 前 | 0
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Can I check if factored and expanded polynomial forms are equal?
simplify((w^2-k^2) - (w+k)*(w-k)) ans = 0 expand((w+k)*(w-k)) ans = w^2 - k^2 factor(w^2-k^2) ans = [ -1, k - w...
Can I check if factored and expanded polynomial forms are equal?
simplify((w^2-k^2) - (w+k)*(w-k)) ans = 0 expand((w+k)*(w-k)) ans = w^2 - k^2 factor(w^2-k^2) ans = [ -1, k - w...
約4年 前 | 0
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How to call some object handle from opening function of figure?
u0=findobj('Tag','lst1','Style','listbox','Parent',gcf); % search for all the object properties you used to identify it set(u0,...
How to call some object handle from opening function of figure?
u0=findobj('Tag','lst1','Style','listbox','Parent',gcf); % search for all the object properties you used to identify it set(u0,...
約4年 前 | 0
| 採用済み
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Find orthogonal complement for given matrix
B=null(A'); The matrix transposing is important!
Find orthogonal complement for given matrix
B=null(A'); The matrix transposing is important!
約4年 前 | 2
| 採用済み
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How can I write a loop, which can make the parameter "V" change with a cyclic variable "i"?
Use Matlab functions "strcat" and "num2str" within a loop.
How can I write a loop, which can make the parameter "V" change with a cyclic variable "i"?
Use Matlab functions "strcat" and "num2str" within a loop.
約4年 前 | 0
| 採用済み
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How do I calculate acceleration with velocity and the code given?
% sample data t=0:0.1:10; % time x=3+2*t+t.^2; % coordinate [t,ind]=sort(t); % in a case time is not in an ascending order ...
How do I calculate acceleration with velocity and the code given?
% sample data t=0:0.1:10; % time x=3+2*t+t.^2; % coordinate [t,ind]=sort(t); % in a case time is not in an ascending order ...
約4年 前 | 1
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How to assign numbers to letters of the alphabet. Ex. A/a=1 B/b=2
The ASCII codes can be found with the function double double('A'); 65 If you want to get its ordinal number in the alphabet, ...
How to assign numbers to letters of the alphabet. Ex. A/a=1 B/b=2
The ASCII codes can be found with the function double double('A'); 65 If you want to get its ordinal number in the alphabet, ...
約4年 前 | 1
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How to sum columns of a matrix in MATLAB in specified number of columns?
B=squeeze( sum( reshape(A,size(A,1),10,[]) ,2) );
How to sum columns of a matrix in MATLAB in specified number of columns?
B=squeeze( sum( reshape(A,size(A,1),10,[]) ,2) );
約4年 前 | 0
| 採用済み
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Create a gaussian from x values
L=20; V = linspace(0,L,301); sigma = L/20; T0 = exp(-((V-mean(V))/sigma).^2/2); plot(V,T0);
Create a gaussian from x values
L=20; V = linspace(0,L,301); sigma = L/20; T0 = exp(-((V-mean(V))/sigma).^2/2); plot(V,T0);
4年以上 前 | 1
| 採用済み
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extract a double array to multiple arrays
b1=aa(1:4:end); b2=aa(2:4:end); b3=aa(3:4:end); b4=aa(4:4:end);
extract a double array to multiple arrays
b1=aa(1:4:end); b2=aa(2:4:end); b3=aa(3:4:end); b4=aa(4:4:end);
4年以上 前 | 1
| 採用済み
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Importing Latex Code into Matlab Scripts
In live script, go to \insert\Equation\Latex equation or just press Cntrl+Shift+L or type your Latex equation embraced by $ symb...
Importing Latex Code into Matlab Scripts
In live script, go to \insert\Equation\Latex equation or just press Cntrl+Shift+L or type your Latex equation embraced by $ symb...
4年以上 前 | 0
回答済み
How can I calculate the integral2 using sum of prod?
symprod does not support the element-wise multiplication, which is needed for integral2. You sholuld probably define your fun v...
How can I calculate the integral2 using sum of prod?
symprod does not support the element-wise multiplication, which is needed for integral2. You sholuld probably define your fun v...
4年以上 前 | 1
| 採用済み
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How to find the maximum distance between two curves?
(1) Specify, what do you mean by the distance between curves. If this is the distance between any points of them, a special (tho...
How to find the maximum distance between two curves?
(1) Specify, what do you mean by the distance between curves. If this is the distance between any points of them, a special (tho...
4年以上 前 | 2
| 採用済み
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New to Matlab- How to import a text file for analysis that contains numbers and characters?
If you need it only once (or few times), use the Import utility of Matlab (Home\Import Data - a green downward arrow); chose the...
New to Matlab- How to import a text file for analysis that contains numbers and characters?
If you need it only once (or few times), use the Import utility of Matlab (Home\Import Data - a green downward arrow); chose the...
4年以上 前 | 0
回答済み
help speeding up an incrementing loop
At the first glance, you can replace numerator=0; for k = 1:n_trc numerator = nume...
help speeding up an incrementing loop
At the first glance, you can replace numerator=0; for k = 1:n_trc numerator = nume...
4年以上 前 | 0
回答済み
How to find the vertical height of an ellipse/y axis length of ellipse.
In fact, the height and the width of an ellipse can be easily and more accurately found analytically. Here is Matlab program rea...
How to find the vertical height of an ellipse/y axis length of ellipse.
In fact, the height and the width of an ellipse can be easily and more accurately found analytically. Here is Matlab program rea...
4年以上 前 | 1
| 採用済み
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How to expand the Gaussian Kernel into series of eigenfunctions?
Fitst of all, you should specify --nothing can be done with an arbtrary function. Then, you can try to calculate the integrals a...
How to expand the Gaussian Kernel into series of eigenfunctions?
Fitst of all, you should specify --nothing can be done with an arbtrary function. Then, you can try to calculate the integrals a...
4年以上 前 | 1
| 採用済み
回答済み
Turn function to zero when it reach specific value.
x = linspace (0,180,1800); y = 1. * ((exp (-0.01 .* x)) .* (sin (x)-(x .* cos (x / 2)))); Pu = 30; y(find(y>=Pu,1):end)=0; ...
Turn function to zero when it reach specific value.
x = linspace (0,180,1800); y = 1. * ((exp (-0.01 .* x)) .* (sin (x)-(x .* cos (x / 2)))); Pu = 30; y(find(y>=Pu,1):end)=0; ...
4年以上 前 | 0
| 採用済み
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How to show part of a nested structure as a vector?
sn='seine_1'; % sn=fieldnames(all_seines); % sn=sn{1}; nm=fieldnames(all_seines.(sn)); N=numel(nm); A=zeros(N,1); for k=...
How to show part of a nested structure as a vector?
sn='seine_1'; % sn=fieldnames(all_seines); % sn=sn{1}; nm=fieldnames(all_seines.(sn)); N=numel(nm); A=zeros(N,1); for k=...
4年以上 前 | 0
回答済み
Values over 1000 use e
read matlab help on the "format" command. try "format longg".
Values over 1000 use e
read matlab help on the "format" command. try "format longg".
4年以上 前 | 0
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how to create Chi squared distribution using mean and variance?
see https://www.mathworks.com/help/stats/chi-square-distribution-1.html
how to create Chi squared distribution using mean and variance?
see https://www.mathworks.com/help/stats/chi-square-distribution-1.html
4年以上 前 | 0