diff --git a/main.rkt b/main.rkt
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+#lang racket
+
+;pmap is a parallel concurrent map function.
+;its inspired of Clojures pmap.
+
+(require racket/future)
+
+(provide pmap)
+
+(define (transpose lists) ; collumns to rows!
+  (apply map list lists))
+
+;(transpose '((1 3 5) (2 4 6))) ; test
+
+(define (pmap func . lists) ; pmap
+  (map touch
+       (for/list ([a (transpose lists)])
+         (future (lambda () (apply func a)))
+         )))
+
+;(pmap (lambda (x)(car x)) '((a b)(c d)(e f))) ; a test
+;(pmap * '(1 2 3 4 5 6 7 8 9) '(1 2 3 4 5 6 7 8 9)) ; a nother test
+;(pmap (lambda (x y) (* x y)) '(1 2 3 4 5 6 7 8 9) '(1 2 3 4 5 6 7 8 9)) ; yet a nother test!
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