September 2017 Update

Task/Euler-method/Jq/euler-method-2.jq

@@ -0,0 +1,10 @@
+def euler_solution(df; x1; y1; x2; h):
+  def recursion(exp): reduce recurse(exp) as $x (.; $x);
+  h as $h
+  | [x1, y1]
+  | recursion( if ((.[0] < x2 and x1 < x2) or
+                   (.[0] > x2 and x1 > x2)) then
+  		[ (.[0] + $h), (.[1] + $h*df) ]
+             else empty
+             end )
+  | .[1] ;