191 Alternatives to procedural loops and iterating over lists in Mathematica 2011-04-30T00:16:16.173

173 Performance tuning in Mathematica? 2011-01-18T06:36:45.877

118 File-backed lists/variables for handling large data 2012-01-17T22:36:02.517

117 What is a Mathematica packed array? 2012-03-25T21:44:05.453

116 Why are numeric division and subtraction not handled better in Mathematica? 2014-01-22T17:34:59.797

96 What best practices or performance considerations are there for choosing between Cases, Position, Pick and Select? 2012-01-17T21:10:34.680

94 Profiling from Mathematica 2012-07-01T20:06:59.787

91 Shaving the last 50 ms off NMinimize 2012-04-24T13:48:28.817

86 How to make an inkblot? 2012-03-22T14:57:14.980

75 Internal`Bag inside Compile 2012-01-28T06:23:28.303

73 How can this confetti code be improved to include shadows and gravity? 2012-02-17T06:49:36.937

67 Is this the most effective and efficient programming style for prototyping (a ray tracer) in Mathematica? 2014-05-27T22:00:26.177

66 How to efficiently find positions of duplicates? 2013-03-14T19:37:13.107

63 Speeding up this fractal-generating code 2012-01-18T04:39:46.967

63 How can I use Mathematica's graph functions to cheat at Boggle? 2012-05-09T18:23:57.460

59 New Compiler Technology in V12 2019-04-17T20:02:19.747

53 Are there guidelines for avoiding the unpacking of a packed array? 2012-05-07T01:41:44.027

52 Adaptive sampling for slow to compute functions in 2D 2012-01-18T21:10:43.893

52 A geometric multigrid solver for Mathematica? 2018-05-21T01:07:59.980

50 Benchmarking Mathematica performance on the Raspberry Pi 2014-01-02T02:16:43.770

49 Why won't Parallelize speed up my code? 2014-05-21T21:12:23.590

47 Why is the new PositionIndex horribly slow? 2014-07-15T00:14:51.540

46 Transferring a large amount of data in parallel calculations 2012-03-13T17:42:48.707

45 Is it possible to speed up ContourPlot on multi-core machines? 2012-01-30T20:47:49.903

45 Parallelize evaluation of function with memoization 2012-02-03T17:51:11.140

45 Performance tuning for game solving (peg solitaire | senku) 2012-06-12T05:05:44.177

45 Fastest way to calculate matrix of pairwise distances 2013-03-22T19:40:06.107

45 Smooth Peter de Jong attractor 2014-06-15T13:11:48.357

44 What would you ask Mathematica to do on a big system? 2016-01-25T19:06:47.337

44 Is there any algorithm that runs faster in Mathematica than in C or Fortran? 2019-10-17T05:35:48.853

43 Fast Spherical Harmonics radiative transfer 2012-09-18T10:43:16.673

43 Mma 10: Half the parallel power (Macs)? 2014-07-11T13:42:22.490

42 How can I improve the speed of eigenvalue decompositions for large matrices? 2012-01-18T02:42:54.657

42 How to work with Experimental`NumericalFunction? 2014-03-06T14:25:58.943

41 What is the most efficient way to add rows and columns to a matrix? 2012-01-18T18:37:24.330

41 Happy 2K prime question 2012-06-20T22:25:15.483

40 Efficiently generating n-D Gaussian random fields 2012-04-27T17:44:19.977

40 Finding Local Minima / Maxima in Noisy Data 2013-04-23T07:44:07.540

37 Difference between AbsoluteTiming and Timing 2012-11-05T16:52:08.977

37 Why is StringExpression faster than RegularExpression? 2013-05-22T15:52:37.567

36 Can a Trie be implemented efficiently? 2012-01-21T13:22:28.897

36 DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something? 2014-07-19T11:26:42.637

36 Performance problems in new Sequence functions 2015-05-13T02:04:22.080

36 Searching for still lifes in Conway's Game of Life 2017-11-28T12:18:05.453

35 How to flush machine underflows to zero and prevent conversion to arbitrary precision? 2013-05-08T10:38:19.487

35 Why is multidimensional Reverse slow? 2013-11-25T18:15:09.237

35 Exporting extremely large images; arrays generated via TensorProduct use 5 times as much RAM as expected? 2013-12-26T03:44:05.623

35 CPU timing for matrix rank calculation difference between 10.3 and 10.4 and 11.0 2016-09-03T08:46:08.847

34 How to collect result continuously (interruptible calculation) when running parallel calculations? 2012-01-19T22:41:14.860

33 How to read data file quickly? 2012-05-05T14:57:41.603

33 xkcdConvert routines perform slower in Mathematica 9 2013-01-04T17:17:37.370

33 Efficient lazy weak compositions 2015-08-30T21:55:29.577

33 Numerical integration --- Mathematica vs Python (w/ Scipy) performance 2015-09-14T22:52:06.723

33 Terrifying performance decrease for contour/density plots in v10.1 -> 10.3 2015-11-12T14:35:47.580

33 Why is CompilationTarget -> C slower than directly writing with C? 2016-11-26T16:06:57.677

33 Fast spherical polygon 2017-04-21T16:57:24.640

33 Why is Plus so much slower than Total? 2017-05-01T21:47:41.460

32 How are MemberQ and FreeQ so fast? 2012-02-06T21:36:58.170

32 Why (and when) does pattern matching with f[__] perform MUCH more quickly than _f? 2016-11-12T21:46:40.907

31 Finding all elements within a certain range in a sorted list 2012-02-27T09:18:10.557

31 Why is Query so much slower than Part? 2014-08-04T23:50:44.443

31 Has this implementation of FDM touched the speed limit of Mathematica? 2014-10-07T15:01:55.800

31 Make my data-structure atomic 2014-10-08T13:21:09.453

31 Is there a linter to help write good Mathematica code? 2016-04-16T11:47:53.983

31 Faster derangements? 2017-03-23T04:14:10.880

31 Why is raytracing so slow? 2020-04-15T23:07:20.870

30 How to improve the performance of solutions to Project Euler (#39)? 2012-08-29T07:03:17.717

30 Common subexpression from two expressions 2013-05-13T15:21:19.130

30 What Mathematica features and idioms have $n^2$ complexity or worse 2013-07-19T16:35:23.367

30 Mathematica performance on Mac 2013-08-04T19:10:24.463

30 Can (compiled) matrix permanent evaluation be further sped-up? 2013-12-02T18:32:55.807

30 Minesweeper: How to Dynamic a lot of graphics with high-speed? 2014-11-20T08:14:41.467

30 Exchanging numpy arrays between Python and Mathematica? 2017-04-28T17:42:08.507

30 Plotting the Star of Bethlehem 2020-12-14T17:48:08.833

29 How can I ensure that I am constructing patterns in the most efficient way possible? 2012-01-19T02:29:44.670

29 Why some built-in functions are slow 2014-10-24T23:11:03.147

29 Why is ListPlot so slow here? 2015-05-29T15:54:15.407

29 Solve slower in versions 9 and 10 2015-07-31T22:08:11.863

29 How to speed up estimation of Mean and Gaussian curvatures on triangular meshes? 2016-06-08T06:49:46.960

29 UI performance with large image data 2016-09-29T15:42:32.820

28 Best way to create symmetric matrices 2012-07-04T20:43:10.990

28 Making fractals with Mathematica 2012-10-17T12:28:58.367

28 Progress bar for FullSimplify 2015-10-09T16:47:51.743

28 Why Except is so slow as compared to equivalent RegularExpression? 2017-03-22T19:14:34.487

28 Animating wave motion in water 2019-03-18T11:08:10.793

27 Efficient way to count the number of zeros at the (right) end of a very large number 2012-02-01T03:04:08.690

27 Finding long strings of identical digits in transcendental numbers 2012-06-01T20:53:46.833

27 Reading periodic elements from a large file 2012-11-26T03:04:03.960

27 Compiling ColorFunction for faster complex phase-amplitude plots 2013-09-24T23:51:19.923

27 Two ways to map a function on a list: Which one is faster? 2013-10-31T12:25:03.177

27 Can code optimize code? 2014-08-23T13:36:22.800

27 How to improve performance of BesselJ to the level of GSL? 2015-06-02T10:40:20.277

27 FindMinimum doesn't increase step size when necessary 2016-05-30T19:46:24.467

26 Using the Krylov method for Solve: Speeding up a SparseArray calculation 2012-04-18T16:31:16.063

26 Faster alternatives for DayOfWeek 2012-06-20T19:32:56.347

26 Implementation of Balaban's Line intersection algorithm in Mathematica 2012-10-23T06:57:20.257

26 Efficiently generating 2-D Gaussian random fields on the sphere 2015-09-10T17:04:38.397

26 Fractal basins of attraction in a Magnetic Pendulum 2016-07-18T00:27:55.140

26 Simulating molecular dynamics efficiently 2017-12-06T18:07:37.097