Community Profile

photo

Viviana Arrigoni


2017년부터 활동

Statistics

Content Feed

보기 기준

질문


product of nonsingular matrices is singular?
I am generating this 1000x1000 real matrix A that is nonsingular. Linear algebra claims that det(A) = det(A') and that det(AA') ...

약 5년 전 | 답변 수: 2 | 1

2

답변

질문


Running time worsening when matrices of size 2^k are involved.
I have experienced a worsening in the performances of a software when data of size 2^k for some k is involved. The problem is ve...

약 5년 전 | 답변 수: 0 | 0

0

답변

질문


multiple vectors histogram plotting
I would like to plot a histogram like the one in the picture, the x axis is labeled with different matrix names, and for each th...

약 5년 전 | 답변 수: 1 | 0

1

답변

질문


Scanning strings in a string array
I see that if I declare a string between ' ', I can have access to each single character. For instance: >> x = 'abc'...

약 5년 전 | 답변 수: 2 | 0

2

답변

질문


Fiedler matrix determinant behaviour
With the following command I generate a 1000x1000 Fiedler matrix from the Matlab gallery: A = gallery('fiedler',rand...

5년 이상 전 | 답변 수: 1 | 0

1

답변

질문


Generate random permutation matrix
I am trying to generate a random square matrix A of dimension n that has one and only one 1 per row and column. My idea is the...

5년 이상 전 | 답변 수: 2 | 0

2

답변