Initial data commit

Task/Haversine-formula/PicoLisp/haversine-formula-1.l

@@ -0,0 +1,17 @@
+(scl 12)
+(load "@lib/math.l")
+
+(de haversine (Th1 Ph1 Th2 Ph2)
+   (setq
+      Ph1 (*/ (- Ph1 Ph2) pi 180.0)
+      Th1 (*/ Th1 pi 180.0)
+      Th2 (*/ Th2 pi 180.0) )
+   (let
+      (DX (- (*/ (cos Ph1) (cos Th1) 1.0) (cos Th2))
+         DY (*/ (sin Ph1) (cos Th1) 1.0)
+         DZ (- (sin Th1) (sin Th2)) )
+      (* `(* 2 6371)
+         (asin
+            (/
+               (sqrt (+ (* DX DX) (* DY DY) (* DZ DZ)))
+               2 ) ) ) ) )

Task/Haversine-formula/PicoLisp/haversine-formula-2.l

@@ -0,0 +1,4 @@
+(prinl
+   "Haversine distance: "
+   (round (haversine 36.12 -86.67 33.94 -118.4))
+   " km" )