In mathematics, a matrix (plural matrices) is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.
What's the easiest way to compute a 3x3 matrix inverse? I'm just looking for a short code snippet that'll do …
c++ math matrix matrix-inverseWe are computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the …
java math matrix performanceHow can I concatenate matrices of same columns but different number of rows? For example, I want to concatenate a ( …
r matrix concatenationI write this code to read 3 files, TM is the size of square matrix, LER the No. of rows of …
c matrix coredumpGoal: from a list of vectors of equal length, create a matrix where each vector becomes a row. Example: > …
r matrix vectorI have a data frame with 10 columns, collecting actions of "users", where one of the columns contains an ID (not …
r performance matrix split dataframe>>> ex=np.arange(30) >>> e=np.reshape(ex,[3,10]) >>> e array([[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [10, 11, 12, 13, 14, 15, 16, 17, 18, 19], [20, 21, 22, 23, 24, 25, 26, 27, 28, 29]]) >>&…
python numpy matrixIs there a built in MATLAB function to find out if a matrix contains a certain value? (ala PHP's in_…
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