From 8acaca52f9df81e9fb902ff18967372a1b7ba547 Mon Sep 17 00:00:00 2001
From: bnewbold <bnewbold@robocracy.org>
Date: Wed, 15 Jun 2016 16:02:26 -0400
Subject: add last night's notes

---
 notes/background.txt          | 40 +++++++++++++++++++++++++++++++++++++++
 notes/examples.txt            | 13 +++++++++----
 notes/implementation_libs.txt | 44 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 93 insertions(+), 4 deletions(-)
 create mode 100644 notes/implementation_libs.txt

diff --git a/notes/background.txt b/notes/background.txt
index e5c1699..4b08c26 100644
--- a/notes/background.txt
+++ b/notes/background.txt
@@ -22,8 +22,19 @@ Wolfram SystemModeler
 
 SysML ("Systems Modeling Language"): UML subset
 
+Systems Tool Kit
+military-industrial 3D modeling... thing...
+https://en.wikipedia.org/wiki/Systems_Tool_Kit
+
+Sims.jl
+http://tshort.github.io/Sims.jl/design/
+
+https://github.com/casadi/casadi/wiki
+
 ### Modelica Stuff
 
+EU spent 75 million on Modelica stuff in 2007-2015.
+
 "World3 in Modelica: Creating System Dynamics Models in the Modelica Framework"
 (2008)
 
@@ -37,3 +48,32 @@ OpenModelica
 PySimulator
 https://github.com/PySimulator/PySimulator/
 
+Some internal and implementation details are discussed in:
+"Introduction to the Dynamic Modelling of Thermo-Fluid Systems using Modelica"
+http://staff.polito.it/roberto.zanino/sub1/teach_files/modelica_minicourse/index_modelica.html
+
+'Flat' vs. 'Object Oriented' modelica modeling
+"Consistent terminology: Modeling, DAE, ODE"
+http://stackoverflow.com/questions/37354272/consistent-terminology-modeling-dae-ode
+
+The "Replaceable Submodels" aspect of modelica seems relevant.
+
+modelica -> C (FMI) -> Javascript (via enscripten) workflow
+https://github.com/tshort/openmodelica-javascript
+
+parsers:
+  ocaml: https://opam.ocaml.org/packages/modelica_ml/modelica_ml.0.1.1/
+  haskell: https://hackage.haskell.org/package/modelicaparser
+  python: http://kdavies4.github.io/ModelicaRes/
+  js: https://www.npmjs.com/package/modelica-parser
+  js: https://github.com/omuses/moijs
+
+### GUI/UI For Models
+
+GME: genric web "box-and-wire"
+    https://webgme.org/
+
+Luna Lang
+    so far, vaporware
+    http://www.luna-lang.org/
+
diff --git a/notes/examples.txt b/notes/examples.txt
index 0035113..895cd12 100644
--- a/notes/examples.txt
+++ b/notes/examples.txt
@@ -2,15 +2,20 @@
 ### Models
 
 Simple, equation based:
-- Lotka–Volterra
-- whatever Fe is the minimal of (function of protons/neutrons? discrete)
+- World3 (from limits to growth report)
 - classic predator-prey (Lotka–Volterra)
 - attractors
 - that vegan paper
-x Uranium Critical Mass (meh, too complicated)
+- whatever Fe is the minimal of (function of protons/neutrons? discrete)
 - urban subsidized housing (thinking in systems)
-- World3 (from limits to growth report)
 - Pulse Tube Cooler
+- Hodgkin–Huxley model for neurons
+x Uranium Critical Mass (meh, too complicated)
+- three-body, eg
+  http://nbviewer.jupyter.org/github/pjpmarques/Julia-Modeling-the-World/blob/master/Three-Body%20Problem.ipynb
+
+Not-Time-Oriented
+- high-precision model for water (enthalpy, etc)
 
 Economics:
 - rent control
diff --git a/notes/implementation_libs.txt b/notes/implementation_libs.txt
new file mode 100644
index 0000000..94a961f
--- /dev/null
+++ b/notes/implementation_libs.txt
@@ -0,0 +1,44 @@
+
+##### Julia Web Framework
+
+Morsel.jl
+    Classic web framework paradigm. Use this for the wiki.
+    http://juliawebstack.org/
+
+Escher.jl
+    Sort of PHP-like single-file UIs.
+    Might be good for exploration/visualization?
+
+
+##### Julia Markdown Rendering
+
+Try using the Julia built-in stuff, which seems to support basic LaTeX
+rendering.
+If that isn't powerful enough, or seems to "custom", switch to pandoc as an
+external tool.
+
+
+##### Julia Computer Algebra Stuff
+
+Use Sims.jl for flattening, etc! Otherwise this will be really hard.
+
+##### Julia Parser Framework (eg, parser generator)
+
+Parsimonious.jl
+    Fairly close to BNF? Good tutorial. Start with this.
+
+PEGParser.jl
+    Also pretty BNF-like
+
+ParserCombinator.jl
+    More Haskell-like. Meh.
+
+##### GUI Demos
+
+numeric.js
+    Has an ODE solver. Use with Elm?
+
+Tangle.js
+    Brett's JS widget-y thing. Very simple.
+    How did he do plots/graphs for those demos?
+    http://worrydream.com/Tangle/guide.html
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