Plotting a function with constraint
Fast/Easy way to decompose a block matrix?
How to obtain this asymptotic of the sum of the series?
Why is `CoefficientRules` significantly slower than `CoefficientList`, and how to efficiently get sparse rules for multivariate polynomials?
Why don't these rules work?
How to compute the semidirect product of groups, for example Z_5 and Z_2, using Mathematica?
Plotting a function with constraint https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319164
I have a matrix M = {{-num11/(2*den), num12/den}, {num12/den, num22/(2*den)}}; with ... [equation-solving] [symbolic] [constraint] [findinstance]
asked by Rob https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=66809
Score of 6 Fast/Easy way to decompose a block matrix? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319155
I am solving a system of nonlinear PDE (1 time, 1 space). I spatially discretize them into vectors n+2 long (the extra 2 being the boundary points). This often leaves me with 2n x 2n Jacobian to ... [matrix] [linear-algebra] [nonlinear]
asked by DGC https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=111367
Score of 6 answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999
Score of 10 How to obtain this asymptotic of the sum of the series? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319159
The results of the commands in 14.3 on Windows AsymptoticSum[(-1)^(k - 1)/k, {k, 1, n}, {n, Infinity, 1}] ... [calculus-and-analysis]
asked by user64494 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7152
Score of 5 answered by Mariusz Iwaniuk https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=26828
Score of 7 Why is `CoefficientRules` significantly slower than `CoefficientList`, and how to efficiently get sparse rules for multivariate polynomials?
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319163
I have noticed a significant performance gap between CoefficientList and CoefficientRules . While ... [performance-tuning] [polynomials] [sparse-arrays] [internals]
asked by lapcal https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=85338
Score of 4 Why don't these rules work? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319167
I have written the following code that should help me to rewrite a complicated expression in terms of Lorentz invariants that I have called $I_4,I_8$ and so on. ... [replacement] [tensors] [rule] [xact]
asked by Filippo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=116563
Score of 3 answered by mikado https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36788
Score of 2 How to compute the semidirect product of groups, for example Z_5 and Z_2, using Mathematica?
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=319151
I need a way to automate calculation of the semidirect product of $Z_p$ and $Z_n$ where $n$ divides $p-1$ and $p$ is prime, with Mathematica in terms of Mathematica's default permutations notation. A ... [linear-algebra] [group-theory]
asked by Phillip Dukes https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=94691
Score of 2 answered by A. Kato https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=62063
Score of 8