Questions tagged [matrix]

28

votes

2

answers

Numpy image - rotate matrix 270 degrees

asked 2010-03-17T10:07:03.267

10

votes

3

answers

How to compute 99% coverage in MATLAB?

matlab matrix statistics percentile

asked 2010-03-05T06:35:31.513

19

votes

6

answers

How can I remove a column from a sparse matrix efficiently?

python matrix numpy scipy algebra

asked 2010-03-03T03:25:01.327

15

votes

3

answers

How to compute only the diagonal of a matrix product in Octave?

matlab matrix octave matrix-multiplication diagonal

asked 2010-02-20T04:26:02.960

22

votes

5

answers

Calculate the sum of elements in a matrix efficiently

algorithm matrix

asked 2010-02-17T01:35:17.903

24

votes

3

answers

Reshape 3d matrix to 2d matrix

matlab matrix reshape

asked 2010-02-13T08:16:04.617

23

votes

7

answers

Computing the null space of a matrix as fast as possible

algorithm math matrix cuda

asked 2010-02-02T01:49:35.480

11

votes

6

answers

Randomize matrix in perl, keeping row and column totals the same

perl random matrix

asked 2010-01-25T15:26:16.683

22

votes

6

answers

allocate matrix in C

c pointers matrix malloc

asked 2010-01-24T20:43:16.197

32

votes

14

answers

Optimized matrix multiplication in C

c matrix

asked 2009-12-15T13:45:14.480

9

votes

1

answers

How to divide a matrix into equals parts?

matlab matrix

asked 2009-11-29T23:40:42.853

37

votes

3

answers

Best way to allocate matrix in R, NULL vs NA?

r matrix

asked 2009-11-16T23:44:25.373

299

votes

11

answers

What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and benefit tradeoffs?

c++ math matrix linear-algebra

asked 2009-09-04T16:45:58.510

121

votes

7

answers

How do I make a matrix from a list of vectors in R?

r matrix vector

asked 2009-08-25T18:02:36.033

11

votes

4

answers

How to prepend a column to a matrix?

matrix wolfram-mathematica

asked 2009-08-07T13:46:29.460

12

votes

4

answers

Determining if a matrix is diagonalizable in the R Programming Language

r matrix

asked 2009-07-25T02:32:27.950

100

votes

10

answers

Very large matrices using Python and NumPy

python matrix numpy

asked 2009-06-28T00:32:21.983

14

votes

6

answers

Comparing two matrices in Matlab

matlab comparison floating-point matrix

asked 2009-06-02T07:06:51.380

28

votes

9

answers

Matrix Library for .NET

.net math matrix sparse-matrix

asked 2009-05-08T15:22:20.420

9

votes

2

answers

Turning a binary matrix into a vector of the last nonzero index in a fast, vectorized fashion

matlab matrix vector vectorization

asked 2009-05-06T20:59:14.957

10

votes

4

answers

What's the most efficient/elegant way to delete elements from a matrix in MATLAB?

matlab matrix delete-record

asked 2009-03-25T21:15:26.767

17

votes

8

answers

How can I cluster a graph in Python?

python sorting matrix cluster-analysis graph-theory

asked 2009-03-17T09:21:07.750

53

votes

6

answers

A simple algorithm for generating positive-semidefinite matrices

algorithm math matrix

asked 2009-03-06T15:54:10.770

9

votes

3

answers

Matrices of Matrices within Perl

perl matrix

asked 2009-03-03T22:02:44.280

155

votes

19

answers

Performance of Java matrix math libraries?

java math matrix performance

asked 2009-02-09T19:12:03.783

40

votes

6

answers

Array of Matrices in MATLAB

arrays matlab matrix

asked 2009-01-21T20:59:54.537

182

votes

35

answers

Looping in a spiral

algorithm matrix loops spiral

asked 2008-12-29T18:40:29.320

62

votes

7

answers

Python Inverse of a Matrix

python algorithm matrix linear-algebra matrix-inverse

asked 2008-10-17T05:30:49.997

10

votes

1

answers

How do I get the current size of a matrix stack in OpenGL?

c opengl graphics matrix

asked 2008-09-22T09:43:14.757

616

votes

14

answers

Transpose/Unzip Function (inverse of zip)?

python list matrix transpose

asked 2008-08-21T04:29:07.580

Questions tagged matrix