Answered
How to determine the position of an integer
If you want to use the |find| function: pos = find(d==3);

11 years ago | 0

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Answered
How to get the desired frequency in simplified synchronous machine?
The electrical frequency is, as stated in the comments: f_elec = poles * f_mec / 2 I was wondering what you were doing, ...

11 years ago | 0

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Answered
??? Subscript indices must either be real positive integers or logicals.
Is this what you're trying to do? %% Don't run this part A = magic(4); %% Run this part by itself x = 0.8; f ...

11 years ago | 0

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My input video is in the format of mp4. Does matlab supports this file format?
Should be unnecessary to ask this question in a forum. You can google these things very easily. The answer is yes. <http:/...

11 years ago | 0

Question

Finding the indices of all edges within k steps from a chosen line in an adjacency matrix
I have a function where I can find all nodes k number of steps from any initial set of nodes in a sparse adjacency matrix. Norma...

11 years ago | 0 answers | 0

Answered
trying to right code to generate matrix for three different frequency
w = [100 200 400]; A = zeros(2,2,3); B = zeros(1,2,3); C = zeros(1,2,3); for i = 1:3 A(:,:,i) = [0 1;...

11 years ago | 0

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Answered
Undefined function or variable 'in'.
Well the reason is that you haven't defined 'in' anywhere. My guess is that the input variable should be named 'in'. You hav...

11 years ago | 0

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Answered
function performance, same functions has very different speed
I believe this is due to the way matrices are stored in Matlab. A matrix is stored column-wise, as below: A = [1 2 3;4 ...

11 years ago | 0

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How to generate a system of four equations in four unknows to be solved in a matrix?
If you are familiar with solving linear equations on matrix form by hand, you start of the same way: A*x = b, where b = the v...

11 years ago | 0

Answered
Finding all edges (and nodes) within X steps from a chosen line in an adjacency matrix
I have found a good answer to my question above (Thanks to Dr_Sam!). 1: Add 1 on the diagonal of the matrix A. 2: Build a...

11 years ago | 1

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Question

Finding all edges (and nodes) within X steps from a chosen line in an adjacency matrix
I have a nx2 matrix of to-from nodes for a large network structure. I have used this to create a sparse adjacency matrix which I...

11 years ago | 1 answer | 0

Question

How to graph a connectivity/adjacency matrix?
I want to graph the structure of a network (a power grid). I have a list containing to-from nodes for each branch. The BIOGRA...

11 years ago | 1 answer | 0

Answered
Start matlab on windows 8
If Matlab is installed, and unless your computer is acting up, this should work: 1. Press the windows button, (to enter the s...

11 years ago | 0

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Answered
How do I create a vector with the first day of each month?
Not quite sure what you are asking for here. I assume you have a vector with all days from Monday-Sunday, and you know which...

11 years ago | 0

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Question

Calculating parts of the sparse matrix inverse
I have a sparse symmetric matrix H, containing on average 4 non-zero elements per row/col, and a sparse vector M with only two n...

11 years ago | 1 answer | 1