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votes

3

answers

477

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Optimising subdiagonal shift matrix generation time

modified 5 hours ago Exp ikx 223

13

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1

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3k

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Has Mathematica 12 gotten worse at solving simple equations?

equation-solving

modified Jun 11 at 13:05 user64494 3,968

5

votes

3

answers

470

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Extracting data from Plot

plotting

answered Jun 9 at 7:15 Chris K 8,611

5

votes

4

answers

225

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data time-series data-structures

answered 2 days ago Anjan Kumar 4,123

4

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3

answers

320

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modified 8 hours ago Inzo Babaria 516

3

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4

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165

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list-manipulation

modified yesterday user1066 6,288

8

votes

3

answers

393

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List of functions

functions

modified Jun 11 at 16:01 Alan 6,777

4

votes

2

answers

199

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Improving do loop speed with IntegerQ conditions

functions performance-tuning

modified yesterday user64494 3,968

7

votes

2

answers

302

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How to import .txt file with missing data?

list-manipulation import data-structures

modified Jun 12 at 7:22 Alexey Popkov 39k

4

votes

5

answers

141

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Generate random non-zero “island” in matrix of zeros

matrix random functional-style

modified 14 hours ago Henrik Schumacher 64.1k

8

votes

1

answer

116

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How to calculate $\displaystyle \prod_{p}\frac{p^2+1}{p^2-1}$?

numerics number-theory products

modified yesterday Michael E2 154k

4

votes

2

answers

273

views

Generate certain list from two lists

list-manipulation

modified Jun 10 at 11:24 Roman 11.3k

4

votes

2

answers

201

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Why does plot not show where Piecewise function is not zero?

plotting piecewise sampling

modified Jun 10 at 19:21 kglr 198k

2

votes

1

answer

389

views

Why does the PoissonDistribution not plot around its mean for moderate large numbers?

plotting distributions precision-and-accuracy

modified Jun 11 at 13:07 user64494 3,968

4

votes

3

answers

160

views

Finding the index of an element to be inserted in a sorted list

list-manipulation function-construction

modified 2 days ago David G. Stork 25.6k

3

votes

2

answers

213

views

What does a/.b[c][[1]] mean? [on hold]

functions

answered yesterday Mark R 203

3

votes

1

answer

176

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What is the most reliable way to find a particular function?

undocumented internals

modified Jun 11 at 14:21 user64494 3,968

5

votes

2

answers

79

views

Lowest Magnitude Eigenvalues of Large Sparse Matrices

linear-algebra sorting sparse-arrays eigenvalues

modified Jun 12 at 19:42 Michael Weyrauch 346

6

votes

1

answer

101

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Multicolumn Output

list-manipulation

modified Jun 9 at 1:30 kglr 198k

19

votes

1

answer

162

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Possible Memory Leak Issues in NestWhile

bugs core-language memory

modified Jun 11 at 21:11 Roman 11.3k

3

votes

2

answers

98

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Plot vectors as sums of vectors along the axes

plotting vector

modified Jun 12 at 3:37 user64494 3,968

2

votes

2

answers

76

views

Simplify $w^{3n}, w^{6n}, w^{3 + 3n}, w^{4+3n}$, etc. using $w^3=1$

simplifying-expressions

answered 2 days ago Shadowray 5,558

6

votes

1

answer

89

views

TeXForm doesn't work in wolframscript?

formatting scripting conversion

modified Jun 8 at 22:47 Kuba♦ 109k

2

votes

1

answer

99

views

Why doesn't Mathematica completely draw the fit?

fitting data modeling

answered 2 days ago kglr 198k

2

votes

2

answers

89

views

Table with varying step

table

modified Jun 11 at 21:36 Roman 11.3k

2

votes

1

answer

62

views

Passing Package Dependencies to Subkernels

parallelization packages

modified Jun 11 at 12:59 user64494 3,968

1

vote

1

answer

47

views

`Minimize` runs forever

mathematical-optimization

modified Jun 11 at 2:33 Kevin Ausman 781

1

vote

1

answer

78

views

Help Solving a Diff Eq (Or, why can't Mathematica handle this?)

differential-equations

modified Jun 11 at 0:22 Nasser 59.8k

2

votes

2

answers

47

views

Putting the text after the line legend

plotting legending

modified Jun 12 at 2:20 kglr 198k

1

vote

3

answers

76

views

Sum with variable terms to sum over

summation recursion nest

answered yesterday JimB 19.1k

1

vote

2

answers

94

views

Solving BPV of second order nonlinear ODE through NDSolve

plotting differential-equations equation-solving numerical-value

modified Jun 11 at 19:47 Xminer 567

0

votes

1

answer

72

views

How can I plot a sphere like the picture in Mathematica?

plotting graphics3d

modified Jun 12 at 16:13 user64494 3,968

2

votes

1

answer

42

views

How to write down a probabilistic function in Wolfram Language?

function-construction probability-or-statistics

modified 2 days ago user64494 3,968

2

votes

1

answer

69

views

Operator currying: how to convert f[a,b][c,d] to {a+c,b+d}?

core-language functional-style operators currying

modified 2 hours ago Roman 11.3k

3

votes

3

answers

65

views

Potential bug : missing terms in ContinuedFraction

continued-fractions

answered Jun 11 at 13:47 mathheadinclouds 550

0

votes

1

answer

83

views

Dynamic number of parameter fits in Mathematica

fitting dynamic series-expansion

modified 5 hours ago user929304 378

5

votes

1

answer

50

views

Augment Export function to support custom number formatting

export output-formatting customization number-form

answered Jun 9 at 21:01 Carl Woll 84.1k

0

votes

1

answer

46

views

Analytic geometry - triangle

graphics geometry

modified Jun 11 at 20:00 Carl Woll 84.1k

4

votes

1

answer

87

views

Triggering WhenEvent as a result of WhenEvent

differential-equations equation-solving bugs symbolic

modified yesterday bbgodfrey 45.5k

1

vote

1

answer

37

views

Reduce all pairwise comparisons in a list

list-manipulation inequalities

modified 2 days ago kglr 198k

3

votes

2

answers

78

views

How do I import data formatted in C or Fortran into Wolfram Language?

formatting data text input natural-language

modified Jun 11 at 13:11 user64494 3,968

1

vote

1

answer

47

views

How to fit a list of points to a certain form given error bands?

plotting fitting

modified 2 days ago Roman 11.3k

2

votes

3

answers

75

views

PIDTune and characteristic equation of zero

control-systems modeling

modified Jun 11 at 17:12 morbo 516

5

votes

1

answer

35

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How to make help open local help automatically instead of asking to choose each time?

documentation

answered 2 days ago Chris K 8,611

1

vote

2

answers

93

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Appending functions to list

output-formatting

answered Jun 11 at 4:44 MelaGo 1,671

4

votes

1

answer

52

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Converting Daily Time Series Data into Low Frequency Data (Weekly, Bi-weekly, Monthly,..)

list-manipulation date-and-time

modified 2 days ago kglr 198k

1

vote

1

answer

84

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Difficulty with numerically integrating highly-oscillatory function

numerical-integration

modified 2 hours ago user64494 3,968

3

votes

1

answer

50

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