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New posts in matrix
numerical diagonalization of a unitary matrix
Feb 28, 2026
matrix
lapack
eigenvector
I had a sparse matrix, when I open it in R, all elements which should be 0 are dots like ' . ', how can I convert it this dot to number 0?
Feb 28, 2026
r
matrix
Using accumarray to sum data in Matlab
Mar 01, 2026
matlab
matrix
accumarray
Alternating values in a numpy matrix
Mar 01, 2026
python
python-3.x
numpy
matrix
Maxima: Simplify matrix components
Feb 27, 2026
matrix
components
simplification
maxima
Initializing a matrix
Feb 27, 2026
c++
opencv
matrix
element
save vectors of different sizes in matrix
Feb 27, 2026
matlab
for-loop
matrix
vector
Passing 2D array by reference to function
Feb 26, 2026
arrays
c
pointers
matrix
Creating classes matrix without for loops
Feb 26, 2026
matlab
matrix
Replace the elements in list of lists according to the indexes stored in another list
Feb 27, 2026
python
numpy
matrix
indexing
Vector as column index in matrix
Feb 25, 2026
matlab
matrix
matrix-indexing
Get the column which have maximum sum value from matrix
Feb 25, 2026
python
numpy
matrix
Error in `[<-`(`*tmp*`, , subscript out of bounds subscript out of bounds
Feb 25, 2026
r
for-loop
matrix
lambda
glmnet
Numpy combine all nonzero elements of one array in to another
Feb 26, 2026
python
arrays
numpy
matrix
Change matrix dimension
Feb 25, 2026
r
matrix
How can I get all possible permutations of a 2 by 2 matrix using a vector of values such as 0:9?
Feb 25, 2026
r
matrix
permutation
Collapse a matrix to sum values in one column by values in another
Feb 24, 2026
r
matrix
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