2 files changed, 122 insertions, 0 deletions
diff --git a/examples/classic_gravitation/metadata.toml b/examples/classic_gravitation/metadata.toml
new file mode 100644
index 0000000..953dad8
--- /dev/null
+++ b/examples/classic_gravitation/metadata.toml
@@ -0,0 +1,59 @@
+
+[model]
+name-en = "Classic Gravitation"
+descrption-en = "Newtonian"
+sexprs = ['''
+  (=
+    F
+    (/ (* G m1 m2)
+       (square r 2)))
+  ''']
+
+[variables]
+
+  [variables.G]
+  type = "constant"
+  name-en = "Gravitational Constant"
+  value_si = 6.674e-11
+
+  [variables.F]
+  type = 'dependent'
+  name-en = "force"
+  units_si = "unit"
+
+  [variables.r]
+  type = 'independent'
+  name-en = "distance"
+  units_si = "meter"
+
+  [variables.m1]
+  type = 'independent'
+  latex = 'm_1'
+  name = "mass #1"
+  units_si = "kilogram"
+
+  [variables.m2]
+  type = 'independent'
+  latex = 'm_2'
+  name = "mass #2"
+  units_si = "kilogram"
+
+[examples]
+
+  [examples.earth_surface]
+  r = 6.371e6       # radius of earth
+  m1 = 5.972e24     # mass of earth
+  m2 = 70           # mass of human
+
+  [examples.earth_moon]
+  r = 385000        # radius of earth
+  m1 = 5.972e24     # mass of earth
+  m2 = 7.348e22     # mass of moon
+
+
+[references]
+  
+  [references.url]
+  "Mathworld" = "http://mathworld.wolfram.com/Lotka-VolterraEquations.html"
+  "Wikipedia" = "https://en.wikipedia.org/wiki/Lotka%E2%80%93Volterra_equations"
+
diff --git a/examples/lotka_volterra/metadata.toml b/examples/lotka_volterra/metadata.toml
new file mode 100644
index 0000000..7d2cf0d
--- /dev/null
+++ b/examples/lotka_volterra/metadata.toml
@@ -0,0 +1,63 @@
+
+[model]
+name-en = "Lotka–Volterra equations"
+descrption-en = "Predator-Prey Model"
+sexprs = ['''
+  (=
+    (partial-derivative x t)
+    (- (* alpha x)
+       (* beta x y)))
+  ''','''
+  (=
+    (partial-derivative y t)
+    (- (* delta x y)
+       (* gamma y)))
+  ''']
+
+[variables]
+
+  [variables.t]
+  type = 'time' # or "independent"?
+
+  [variables.x]
+  type = 'state'
+
+  [variables.y]
+  type = 'state'
+
+  [variables.alpha]
+  type = 'parameter'
+  latex = '\alpha'
+  unicode = 'α'
+
+  [variables.beta]
+  type = 'parameter'
+  latex = '\beta'
+  unicode = 'β'
+
+  [variables.delta]
+  type = 'parameter'
+  latex = '\delta'
+  unicode = 'δ'
+
+  [variables.gamma]
+  type = 'parameter'
+  latex = '\gamma'
+  unicode = 'γ'
+
+[examples]
+
+  [examples.mathworld]
+  x = 10
+  y = 5
+  alpha = 1.5
+  beta = 1
+  gamma = 1
+  t = [0, 20]
+
+[references]
+  
+  [references.url]
+  "Mathworld" = "http://mathworld.wolfram.com/Lotka-VolterraEquations.html"
+  "Wikipedia" = "https://en.wikipedia.org/wiki/Lotka%E2%80%93Volterra_equations"
+