This .sln contains a collection of .fsproj.

• Notation
• SKCharts
• MKXK
• MKXK-Viewer

P.S. In general the .fsproj directory contain \tests subdirectories with .fsx scripts.
Those scripts are used both as tests, to check that things did not break during development,
and as examples.

Notation

A very plain library for parsing simple LaTeX string of mathematical formulas, built with
SkiaSharp. It writes .png images of those notations over some Stream.

It also contains a demo app in tests/viewnotation_test.fsx script, for testing its notation capabilities.

SKCharts

A simple charting library. It supports 2d charts and 3d surfaces. It is implemented with SkiaSharp and
draws on a SKCanvas, which means it can be used wherever a SKSurface is available.
It also contains an implenetation for AvaloniaUI as an AvaloniaControl.
On top of that, as in the case on Notation.fsproj it could potential be compiled
with AoT, and by using [<NativeCallersOnly>] (look at src/Notation/README.md for an example) be called
from other languages outside of dotnet.

MKXK

A library that parses LaTeX mathematical formulas, it creates ASTs (abstract syntax trees) and can
evaluate those trees numerically. It can also create random AST. This library is meant as a symbolic
regression project. However, it also contains other helpful utilities such as MKXK/src/Gnuplot.fs which
is a simple class for easily integrating Gnuplot from F# code.
Its purpose is to help with modeling processes (as in some laboratory experiments), as a tool.

let gnu4 = Gnuplot("tests_output/images/image4.png")
gnu4
|>> "set terminal pngcairo  transparent enhanced font 'arial,10' fontscale 1.0 size 600, 400 "
|>> "set key at screen 1, 0.9 right top vertical Right noreverse enhanced autotitle nobox"
|>> "set style textbox  opaque margins  0.5,  0.5 fc  bgnd noborder linewidth  1.0"
|>> "set view 60, 30, 1, 1.1"
|>> "set samples 20, 20"
|>> "set isosamples 21, 21"
|>> "set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover"
|>> "set contour both"
|>> "set cntrlabel  format '%8.3g' font ',7' start 5 interval 20"
|>> "set cntrparam levels 10"
|>> "set style data lines"
|>> "set title 'contours on both base and surface' "
|>> "set xlabel 'X axis' "
|>> "set xrange [ * : * ] noreverse writeback"
|>> "set x2range [ * : * ] noreverse writeback"
|>> "set ylabel 'Y axis' "
|>> "set yrange [ * : * ] noreverse writeback"
|>> "set y2range [ * : * ] noreverse writeback"
|>> "set zlabel 'Z ' "
|>> "set zlabel  offset character 1, 0, 0 font '' textcolor lt -1 norotate"
|>> "set zrange [ * : * ] noreverse writeback"
|>> "set cbrange [ * : * ] noreverse writeback"
|>> "set rrange [ * : * ] noreverse writeback"
|>> "set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault"
|>> "NO_ANIMATION = 1"
|>> "splot x**2-y**2 with lines, x**2-y**2 with labels boxed notitle"
|> Gnuplot.run

MKXK-Viewer

It references all the aforementioned .fsprojs, in order to deliver a visualization tool for the ASTs
and to dynamically affect the functions-formulas-ASTs. It is mostly a phase diagram, that supports both
2D charts and 3D surfaces on the generated ASTs, that can interchange based the selected variables to
evaluate against. On top of that it integrates the mathematical notation of those ASTs
(with the Notation.fsproj). That combination provides a better UX.

By selecting X-variable and Y-variable in the Comboboxes on the left, the
formulas on the right side are filtered recarding they contain these x,y variables
and are rendered either as 2d chart, or 3d plane whether is set just the first Combobox
or both Comboboxes.

For more information, check the README.md of each project.

P.S. In every .fsproj directory there is a tests\ folder containing examples and showcasing
the API. More details can be found there.