galben

Last seen: nästan 3 år ago | Active since 2022

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zeros of a matrix
I have a matrix and i want to create a column of zeros the size of the matrix. M=rand(5) A=zeros(size(M,2)) the error i get i...

nästan 3 år ago | 2 answers | 0

2

answers

Question

Columns of a matrix given a condition
tt=[0 0 0 0 0 1 0 0; 1 1 1 0 0 0 0 0; -1 0 0 0 0 0 0 0 ; 1 0 0 0 0 0 0 0; 0 0 0 0 1 1 0 1; 0 0 0 0 0 0 0 1 ] I want to be ab...

nästan 3 år ago | 1 answer | 0

1

answer

Question

finding the Column name of a matrix
find the column name correspnding to particular values in a row of a mertrix i tried this but not working A(find(A(50,:)=1), 2...

nästan 3 år ago | 1 answer | 0

1

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Question

Solving Linear Algebra; matrix
proof that dim(col(R)) + dim(N(R)) = number of columns in R V={[2 3 4]', [4 5 6]', [3 4 5]'} how can i prove this for any m...

nästan 3 år ago | 0 answers | 0

0

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Question

Error with writing a function
function span(v, c) A = []; n = length(A); for i=1:n u=c{i}; u= u'; A = [A u(:)]; end v= v'; v=v(:); if r...

nästan 3 år ago | 3 answers | 0

3

answers

Question

string extraction from a table
How can I extract data for the Brown? I would appreciate some help, i have been stuck with this. Age = [38;43;38;40;49;45...

ungefär 3 år ago | 1 answer | 0

1

answer

Question

Indexing of an array
I have a result array of 50 x 50 and i would like to extract all information for when a certain column equal a certain result.

ungefär 3 år ago | 1 answer | 0

1

answer