User lurscher

15 votes

2 answers

1k views

SphericalHarmonicY does not seem to be an eigenfunction of the spherical harmonic equation

calculus-and-analysis special-functions

asked Dec 18, 2015 at 0:40

10 votes

2 answers

832 views

inspecting step size and order of $\tt NDSolve$

differential-equations numerical-integration

asked Dec 23, 2015 at 21:33

8 votes

2 answers

518 views

Discretizing regions with pointy boundaries

computational-geometry finite-element-method mesh

asked Jan 18, 2015 at 19:53

7 votes

1 answer

454 views

Problem with Neumann condition in quarter disc

differential-equations bugs finite-element-method

asked Oct 20, 2014 at 1:40

4 votes

1 answer

190 views

Saved InterpolatingFunction behaving badly

numerical-integration bugs numerics interpolation

asked Dec 24, 2015 at 22:51

2 votes

0 answers

146 views

projecting a RegionProduct into 3D space

regions computational-geometry

asked Oct 21, 2014 at 22:09

2 votes

1 answer

143 views

Put/Get don't accept a string-valued expression as filename [duplicate]

export files-and-directories

asked Oct 31, 2014 at 6:22

2 votes

1 answer

412 views

Toroidal implicit region looks weird

plotting numerics regions computational-geometry

asked Jan 3, 2015 at 18:04

2 votes

2 answers

141 views

Regularization of singular linear system

linear-algebra

asked Oct 3, 2017 at 17:19

1 vote

1 answer

666 views

Dirichlet conditions being ignored

version-10 computational-geometry differential-equations finite-element-method

asked Jan 3, 2015 at 21:55

1 vote

0 answers

587 views

PrecisionGoal and AccuracyGoal making the solution less accurate?

differential-equations precision-and-accuracy

asked Dec 5, 2015 at 2:29

1 vote

0 answers

2k views

Replace function and its derivatives [duplicate]

replacement expression-manipulation

asked Dec 13, 2015 at 15:38

1 vote

1 answer

238 views

Maximum step size as a scalar function on the domain

differential-equations numerical-integration

asked Dec 30, 2015 at 18:37

0 votes

2 answers

132 views

Unable to simplify the real part of a complex expression

simplifying-expressions complex

asked Dec 30, 2015 at 21:09

0 votes

1 answer

122 views

Invoking functions in other kernels

performance-tuning parallelization resource-management

asked Jan 1, 2016 at 1:58

0 votes

0 answers

46 views

Inspecting the evaluation stack on computation abort [duplicate]

debugging resource-management

asked Jan 7, 2016 at 1:19

0 votes

1 answer

95 views

DiracDelta behaves incorrectly on multidimensional integral [duplicate]

calculus-and-analysis

asked Jan 22, 2016 at 21:15

0 votes

2 answers

144 views

Unevaluated derivatives of known functions after replacement

evaluation replacement vector hold

asked Dec 14, 2015 at 19:39

0 votes

2 answers

649 views

Submatrix with linearly independent columns

matrix linear-algebra

asked Oct 30, 2014 at 1:08

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19 Questions

SphericalHarmonicY does not seem to be an eigenfunction of the spherical harmonic equation

inspecting step size and order of $\tt NDSolve$

Discretizing regions with pointy boundaries

Problem with Neumann condition in quarter disc

Saved InterpolatingFunction behaving badly

projecting a RegionProduct into 3D space

Put/Get don't accept a string-valued expression as filename [duplicate]

Toroidal implicit region looks weird

Regularization of singular linear system

Dirichlet conditions being ignored

PrecisionGoal and AccuracyGoal making the solution less accurate?

Replace function and its derivatives [duplicate]

Maximum step size as a scalar function on the domain

Unable to simplify the real part of a complex expression

Invoking functions in other kernels

Inspecting the evaluation stack on computation abort [duplicate]

DiracDelta behaves incorrectly on multidimensional integral [duplicate]

Unevaluated derivatives of known functions after replacement

Submatrix with linearly independent columns