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+(**************************************************************************)
+(* *)
+(* OCaml *)
+(* *)
+(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
+(* *)
+(* Copyright 1996 Institut National de Recherche en Informatique et *)
+(* en Automatique. *)
+(* *)
+(* All rights reserved. This file is distributed under the terms of *)
+(* the GNU Lesser General Public License version 2.1, with the *)
+(* special exception on linking described in the file LICENSE. *)
+(* *)
+(**************************************************************************)
+
+(function "square" (x: float)
+ ( *f x x))
+
+(function "integr" (f: addr low: float high: float n: int)
+ (let (h (/f (-f high low) (floatofint n))
+ x low
+ s 0.0
+ i n)
+ (while (> i 0)
+ (assign s (+f s (app f x float)))
+ (assign x (+f x h))
+ (assign i (- i 1)))
+ ( *f s h)))
+
+(function "test" (n: int)
+ (app "integr" "square" 0.0 1.0 n float))