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How i can calculate the frequency of 2D data?

matrix numerics import mesh

modified 6 hours ago Henrik Schumacher 46.8k

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Solving the eigenvalue problem for a double well potential using a 1D particle in a box as a basis set

plotting equation-solving matrix physics eigenvalues

modified 20 hours ago b3m2a1 25.9k

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183

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Scramble matrix under some condition

list-manipulation matrix combinatorics permutation

modified yesterday Community♦ 1

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Partial trace and Partial Transposition of a matrix easily?

matrix linear-algebra operators

modified yesterday Zilch 6

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How can I perform the modified Cholesky factorization/Decomposition in Mathematica?

matrix factorization

modified yesterday halirutan♦ 94.5k

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139

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How to generate a $ 9 \times 9 $ matrix like Sudoku ？

matrix data-structures

modified 2 days ago Community♦ 1

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28

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Hessian matrix product in Taylor expansion of vector function

matrix series-expansion vector vector-calculus multivariate

answered Dec 7 at 6:42 Henrik Schumacher 46.8k

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110

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Constructing a matrix from different blocks

matrix

modified Dec 6 at 13:38 Titus 500

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How to split sublists into sub-sublists without merging the sublists

list-manipulation matrix

modified Dec 6 at 9:00 Community♦ 1

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292

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Factorize trigonometric matrices

matrix linear-algebra trigonometry factorization

modified Dec 6 at 7:01 Community♦ 1

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How to accelerate updating some parts of sparse matrices?

matrix

modified Dec 5 at 20:01 Community♦ 1

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Replacing a column of a matrix

list-manipulation matrix

modified Dec 5 at 14:42 Henrik Schumacher 46.8k

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Factor multiplied matrix with vector

matrix factorization

modified Dec 5 at 6:20 Αλέξανδρος Ζεγγ 3,707

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setting up a variable matrix

list-manipulation matrix

modified Dec 4 at 16:43 Szabolcs 158k

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