A-M baby

2013-04-10 21:29:02 -07:00 · 2013-04-10 21:29:02 -07:00 · db842d013d
commit db842d013d
parent 764da6cbbb
19005 changed files with 197040 additions and 7 deletions
--- a/Task/Exponentiation-operator/Factor/exponentiation-operator-3.factor
+++ b/Task/Exponentiation-operator/Factor/exponentiation-operator-3.factor
@ -0,0 +1,13 @@
+USING: combinators kernel math ;
+IN: test
+
+: (pow) ( f n -- f' )
+    [ dup even? ] [ [ sq ] [ 2 /i ] bi* ] while
+    dup 1 = [ drop ] [ dupd 1 - (pow) * ] if ;
+
+: pow ( f n -- f' )
+    {
+        { [ dup 0 < ] [ abs (pow) recip ] }
+        { [ dup 0 = ] [ 2drop 1 ] }
+        [ (pow) ]
+    } cond ;