================================== Top new questions this week: ==================================
[How can I adaptively simplify a curved shape?] http://mathematica.stackexchange.com/questions/137937/how-can-i-adaptively-simplify-a-curved-shape
For the purposes of creating a publication-quality plot marker I wish to convert a font glyph into a simplified Polygon where points are taken adaptively according to curvature of the boundary. ...
- asked by Alexey Popkov (22 votes), answered by Szabolcs (29 votes)
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[Can Mathematica be used to make anamorphic distortions like these?] http://mathematica.stackexchange.com/questions/137853/can-mathematica-be-used-to-make-anamorphic-distortions-like-these
We have all see these sidewalk and street images that appear to be 3D based on the viewers perspective, but then wildly distort when viewed from a different perspective.
Seems to me anamorphic ...
- asked by R Hall (12 votes), answered by Simon Woods (10 votes)
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[How to implement lane-change rules for Nagel Schreckenberg model] http://mathematica.stackexchange.com/questions/138138/how-to-implement-lane-change-rules-for-nagel-schreckenberg-model
I am trying to extend the Nagel-Schreckenberg model for traffic flow to include two lanes of traffic.
I have a function that generates information about a random initial road configuration. A road ...
- asked by jlrawden (11 votes), answered by Ali Hashmi (5 votes)
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[How to make a custom NN layer in Mathematica?] http://mathematica.stackexchange.com/questions/138230/how-to-make-a-custom-nn-layer-in-mathematica
Is there a way to create our own custom layers for Neural Networks in Mathematica ? I suspect it should be possible, any pointers or directions on how to go about it?
I am interested in ...
- asked by Andy Stow Away (9 votes)
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[How to build private function with built-in function’s option] http://mathematica.stackexchange.com/questions/138126/how-to-build-private-function-with-built-in-functions-option
Since this code work well:
Needs["GeneralUtilities`"] GeneralUtilities`BenchmarkPlot[{SortBy[#, Identity] &, Sort}, Range, "IncludeFits" -> True, TimeConstraint -> 8]
I want to set ...
- asked by yode (9 votes), answered by Mr.Wizard (11 votes)
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[Doing combinations of sub-sublists] http://mathematica.stackexchange.com/questions/138178/doing-combinations-of-sub-sublists
To create a list of all the possible combinations of a sublist. I have a list, somewhat resembling the following format:
{{{a1, a2}, {b1}}, {{a1, a2}, {c1, c2}}, {{a1, a2}, {c1, c2}, {d1, d2}}}
...
- asked by Andrew Johnson (8 votes), answered by halirutan (11 votes)
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[Warning: FrontEnd crash with ‘Graphics@InfiniteLine‘ for unknown symbolic coordinates] http://mathematica.stackexchange.com/questions/137847/warning-frontend-crash-with-graphicsinfiniteline-for-unknown-symbolic-coordi
Bug introduced in 10.0 and persisting through 11.0.1 InfiniteLine is new in 10.0.
[CASE:3840702] From your description, I gather you are noticing an unexpected crash while trying to evaluate ...
- asked by masterxilo (8 votes)
================================== Greatest hits from previous weeks: ==================================
[How to add a vertical line to a plot] http://mathematica.stackexchange.com/questions/3561/how-to-add-a-vertical-line-to-a-plot
In the plot below I would like to add two vertical lines at \(x = \frac {\pi }{15} \pm \frac {1}{20}\). How can I do that?
f[x_] := (x^2 z)/((x^2 - y^2)^2 + 4 q^2 x^2) /. {y -> /15, z -> 1, q -> ...
- asked by sjdh (33 votes), answered by Ajasja (49 votes)
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[Can Mathematica do symbolic linear algebra?] http://mathematica.stackexchange.com/questions/3242/can-mathematica-do-symbolic-linear-algebra
For instance, is there some way I can say "let A and B be arbitrary real \(m\times n\) and \(k\times m\) matrices,
Simplify[Transpose[Transpose[A].Transpose[B]]]" and Mathematica would simplify it to B.A? ...
- asked by nikie (42 votes), answered by helen (21 votes)
================================== Can you answer these? ==================================
[Calculate PDF of difference of Max and Min for Gaussian random variables] http://mathematica.stackexchange.com/questions/138027/calculate-pdf-of-difference-of-max-and-min-for-gaussian-random-variables
Although this should be a standard question I didn’t find it in SE, and it was a nice exercise in Mathematica.
Let \(x\) and \(y\) be two independent Gaussian random variables with distribution \(N(0,1)\). ...
- asked by Dr. Wolfgang Hintze (3 votes)
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[Implementing t-SNE (t-Distributed Stochastic Neighbor Embedding)] http://mathematica.stackexchange.com/questions/137955/implementing-t-sne-t-distributed-stochastic-neighbor-embedding
Context
Six months ago @M.R. asked about an implementation of the t-Distributed Stochastic Neighbor Embedding (t-SNE) algorithm by van der Maaten and Hinton (2008). (@M.R.'s question) @Alexey ...
- asked by SumNeuron (3 votes)
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[Is there an easy way to to collect a large number variables into a list or list of lists?] http://mathematica.stackexchange.com/questions/138225/is-there-an-easy-way-to-to-collect-a-large-number-variables-into-a-list-or-list
I have a large number of variables in a notebook from a data analysis routine, the results of which now need to be fed through a mathematical model and various items for visualization.
For example, ...
- asked by Joe Kissling (2 votes)