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New posts in matrix
Access matrix value using a vector of coordinates?
Mar 26, 2023
matlab
vector
multidimensional-array
matrix
matrix-indexing
Android OpenGLES 2 ray picking from touch coordinates, unprojecting calculation slightly off
Mar 26, 2023
java
android
matrix
3d
opengl-es-2.0
APL: Matrix manipulation trick?
Mar 26, 2023
matrix
apl
Apply a function to every column of a matrix
Sep 03, 2025
matrix
julia
How can I iterate through a two-dimensional array in a snail mode, with a single cycle?
Sep 02, 2025
arrays
algorithm
matrix
multidimensional-array
cycle
Plotting RGB spectrum as 2-d color matrix?
Sep 03, 2025
colors
matrix
rgb
color-space
How to assign 0 to the minimum values by row in a matrix (in a fast/efficient way)?
Sep 03, 2025
r
performance
for-loop
matrix
Is there any difference between Matrix.setRotateM and Matrix.rotateM
Sep 02, 2025
android
matrix
opengl-es-2.0
Fastest way to build matrix with concentric "rings" of values
Sep 03, 2025
performance
matlab
matrix
How to plot matrix with rgb image?
Sep 03, 2025
matrix
colors
gnuplot
rgb
palette
How to slice a numpy.ndarray made up of numpy.void numbers?
Sep 03, 2025
python
numpy
matrix
array-broadcasting
Multiplying a column vector by a numeric scalar in RcppArmadillo
Sep 03, 2025
r
matrix
rcpp
armadillo
Why iteration over array shows my custom prototype functions as items?
Sep 02, 2025
javascript
arrays
matrix
Outer function in R for upper triangular matrix
Sep 03, 2025
r
matrix
diagonal
How to remove and speed up a for loop over matrix columns by vectorisation?
Sep 02, 2025
r
for-loop
matrix
indexing
vectorization
Gradient Descent: thetas not converging
Sep 01, 2025
matrix
machine-learning
octave
linear-regression
gradient-descent
Replacing values with 0 ins symetric matrix according to col, row names in a reference matrix
Sep 02, 2025
r
matrix
Clean implementation of "decision matrix"
Sep 03, 2025
python
matrix
Perfect collinearity detection in sparse matrix using Matrix::qr()
Sep 02, 2025
r
matrix
sparse-matrix
qr-decomposition
How do I concatenate two one-dimensional arrays in NumPy?
Sep 01, 2025
python
numpy
matrix
multidimensional-array
numpy-ndarray
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