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-rw-r--r--samples/rosetta/Sierpinski_triangle.bruijn9
-rw-r--r--samples/rosetta/harmonic_series.bruijn15
2 files changed, 24 insertions, 0 deletions
diff --git a/samples/rosetta/Sierpinski_triangle.bruijn b/samples/rosetta/Sierpinski_triangle.bruijn
new file mode 100644
index 0000000..22659d1
--- /dev/null
+++ b/samples/rosetta/Sierpinski_triangle.bruijn
@@ -0,0 +1,9 @@
+y [[1 (0 0)] [1 (0 0)]]
+
+# infinite depth
+triangle [y [[0 1 [[0]] 1 1]]]
+
+:import std/Number .
+
+# limited depth
+triangle-n [y [[[[1 0 [[0]] 0 0] (=?1 [[1]] (2 --1))]]] (+7)]
diff --git a/samples/rosetta/harmonic_series.bruijn b/samples/rosetta/harmonic_series.bruijn
new file mode 100644
index 0000000..2395933
--- /dev/null
+++ b/samples/rosetta/harmonic_series.bruijn
@@ -0,0 +1,15 @@
+:import std/List .
+:import std/Combinator .
+:import std/Math/Rational Q
+:import std/Number N
+
+harmonic [0 &[[(Q.add 1 op) : N.++0]] start [[1]]] ⧗ Unary → Rational
+ op (+1) : N.--0
+ start (+0.0f) : (+1)
+
+custom-gt? &[[[N.gt? 2 (N.mul 0 N.++1)]]] ⧗ Rational → Νumber → Boolean
+
+main [φ cons first-20 first-10-above (harmonic <$> (iterate [[[1 (2 1 0)]]] (+0u)))]
+ first-20 take (+20)
+ first-10-above [take (+10) first-above]
+ first-above [find-index [custom-gt? 0 1] 1] <$> (iterate N.inc (+0))