I hereby claim:
- I am johanrhodin on github.
- I am rhodin (https://keybase.io/rhodin) on keybase.
- I have a public key whose fingerprint is EA19 078F FA2D 8CDE 5E08 A969 14C0 9651 1140 D11D
To claim this, I am signing this object:
Johan Rhodin johanrhodin
johanrhodin
/ gist:0666136c37f0bb6dfd3a
Created
November 27, 2014 17:02
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| Verifying that +rhodin is my openname (Bitcoin username). https://onename.io/rhodin |
johanrhodin
/ BetaAndUniform.m
Created
July 9, 2015 16:00
Plot improvement suggestion for "Error and Dimensionality" draft article by Nassim Nicholas Taleb
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| (*See Figure 1 in https://dl.dropboxusercontent.com/u/50282823/Propagation.pdf*) | |
| With[{a = 10, b = 20}, | |
| Plot[{PDF[UniformDistribution[{0, 1}], f], | |
| PDF[BetaDistribution[a, b], f]}, | |
| {f, 0, 1}, | |
| Filling -> Axis, | |
| AxesLabel -> {Text[Style["f", Italic]], "Pr"}, | |
| PlotRange -> All, | |
| Ticks -> {Automatic, None}, | |
| PlotLegends -> |
johanrhodin
/ frictiondifference.mo
Last active
September 9, 2015 16:59
Two different ways to model friction
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| // New, in https://github.com/dzimmer/ZimmersModelicaTutorial/blob/master/Tutorial2015/BaseComponents/Friction/IdealDryFriction.mo | |
| free = false; | |
| f0 = R; | |
| f0_max = S; | |
| // velocity and acceleration of flanges | |
| v_relfric = der(-s_rel); | |
| a_relfric = der(v_relfric); | |
| // Friction force | |
| -f = if locked then sa * unitForce else if startForward then R else if startBackward then -R else if pre(mode) == Forward then R else -R; |
johanrhodin
/ RevolutePosition.mo
Created
September 30, 2015 21:20
Small model to illustrate the use of the f_crit parameter for Modelica.Mechanics.Rotational.Sources.Position
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| model RevolutePosition | |
| Modelica.Blocks.Sources.CombiTimeTable combiTimeTable1(tableName = "var1", tableOnFile = true, smoothness = Modelica.Blocks.Types.Smoothness.ContinuousDerivative, extrapolation = Modelica.Blocks.Types.Extrapolation.HoldLastPoint, fileName = Modelica.Utilities.Files.loadResource("modelica://RevolutePosition/TestProfile1.txt")) annotation(Placement(visible = true, transformation(origin = {20, 20}, extent = {{10, -10}, {-10, 10}}, rotation = 0))); | |
| Modelica.Mechanics.Rotational.Sources.Position position1(useSupport = false, f_crit = 0.1, exact = false) annotation(Placement(visible = true, transformation(origin = {-20, 20}, extent = {{10, -10}, {-10, 10}}, rotation = 0))); | |
| Modelica.Mechanics.MultiBody.Parts.Body body(r_CM = {0.1, 0, 0}, m = 1) annotation(Placement(visible = true, transformation(origin = {-70, -20}, extent = {{-10, -10}, {10, 10}}, rotation = -540))); | |
| inner Modelica.Mechanics.MultiBody.World world(enableAnimation = false) annotation(Placement(visible = true, transform |
johanrhodin
/ StarExample.mo
Created
February 2, 2016 16:39
Small example for Wolfram Community, demonstrate how to use "Modelica.Electrical.MultiPhase.Basic.Star"
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| model StarExample | |
| extends Modelica.Icons.Example; | |
| import Modelica.Constants.pi; | |
| Modelica.Electrical.MultiPhase.Basic.Star star(m = m) annotation(Placement(visible = true, transformation(origin = {-60, 40}, extent = {{-10, -10}, {10, 10}}, rotation = -540))); | |
| Modelica.Electrical.Analog.Basic.Ground ground annotation(Placement(visible = true, transformation(origin = {-80, -80}, extent = {{-10, -10}, {10, 10}}, rotation = 0))); | |
| Modelica.Electrical.Analog.Sources.SineVoltage sineVoltage(V = 10, freqHz = 1) annotation(Placement(visible = true, transformation(origin = {-80, -0}, extent = {{-10, -10}, {10, 10}}, rotation = -90))); | |
| Modelica.Electrical.MultiPhase.Sources.SineVoltage sineVoltage1(final m = m, V = fill(sqrt(2) * VRMS, m), freqHz = fill(f, m)) annotation(Placement(transformation(origin = {0, 0}, extent = {{10, -10}, {-10, 10}}, rotation = 90), visible = true)); | |
| Modelica.Electrical.MultiPhase.Basic.Star star1(final m = m) annotation(Placement(transformation(extent = {{10, -10}, {-10, 10}}, r |
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| echo "deb http://packages.erlang-solutions.com/debian jessie contrib" | sudo tee /etc/apt/sources.list.d/erlang-solutions.list | |
| wget http://packages.erlang-solutions.com/debian/erlang_solutions.asc | |
| sudo apt-key add erlang_solutions.asc | |
| sudo apt update | |
| sudo apt install elixir |
johanrhodin
/ heroku-linux
Last active
May 4, 2017 01:33
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| # Get Heroku for the RasPi, where we store the credentials | |
| sudo add-apt-repository "deb https://cli-assets.heroku.com/branches/stable/apt ./" | |
| curl -L https://cli-assets.heroku.com/apt/release.key | sudo apt-key add - | |
| sudo apt-get update | |
| sudo apt-get install heroku |
johanrhodin
/ Name sign
Created
June 3, 2017 22:04
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| With[{text=Text[Style["First Last",Black,FontFamily->"Helvetica",24]],graph=RandomGraph[BernoulliGraphDistribution[RandomInteger[{5,10}],RandomReal[{0.6,0.9}]],GraphHighlight->{RandomInteger[{1,10}]},ImageSize->{50,50}]}, | |
| Grid[{{Rotate[text,\[Pi]],graph},{text,graph}}, | |
| Frame->{{},{True,True}}, | |
| Alignment->{{Right,Left},{Center,Center}}] | |
| ] |
johanrhodin
/ createvhosts
Last active
November 21, 2018 20:29
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| #!/bin/bash | |
| # Creates 400 vhosts | |
| # Related to https://github.com/rabbitmq/rabbitmq-server/pull/1770 & https://groups.google.com/d/msg/rabbitmq-users/ZbTNp6YqZeo/53JLiy2zAQAJ | |
| # Clean up with rabbitmqctl eval '[garbage_collect(P) || P <- processes()].' | |
| # To see this behavior (for a longer time) in 3.7.9 you need to turn off background_gc_enbaled: {background_gc_enabled, false} in rabbitmq.config | |
| for i in `seq 1 400`; | |
| do | |
| echo $i |
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