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+;; Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+;; All rights reserved.
+;;
+;; Redistribution and use in source and binary forms, with or without
+;; modification, are permitted provided that the following conditions are
+;; met:
+;;
+;;     - Redistributions of source code must retain the above copyright
+;;       notice, this list of conditions and the following disclaimer.
+;;
+;;     - Redistributions in binary form must reproduce the above copyright
+;;       notice, this list of conditions and the following disclaimer in
+;;       the documentation and/or other materials provided with the
+;;       distribution.
+;;
+;;     - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+;;       names of its contributors may be used to endorse or promote products
+;;       derived from this software without specific prior written permission.
+;;
+;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+;; IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+;; TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+;; PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+;; OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+;; 
+;; Copyright (C) 2007 Gabriel Dos Reis
+
+
+;; This file contains the primary definition of the BOOT package
+
+;; This is a horrible hack to work around a horrible bug in GCL
+;; as reported here:
+;;    http://lists.gnu.org/archive/html/gcl-devel/2007-08/msg00004.html
+;; 
+#+(and :gcl (not :common-lisp)) (in-package "VMLISP")
+#+(and :gcl (not :common-lisp)) (in-package "AxiomCore")
+
+(import-module "vmlisp")
+(defpackage "BOOT"
+  #+:common-lisp (:use "COMMON-LISP")
+  #-:common-lisp (:use "LISP")
+  (:use "VMLISP" "AxiomCore"))
+
+(in-package "BOOT")
+
+;; Below are some missing functions.  There here for lack of better
+;; place (sys-funs.lisp?)
+;;
+;; These functions should be defined for DoubleFloat inputs but are not.
+;; These are cheap and easy definitions that work but should be rewritten.
+
+;; Contributed by Juergen Weiss from a suggestion by Arthur Norman.
+
+(defun sec (x) (/ 1 (cos x)))
+(defun csc (x) (/ 1 (sin x)))
+(defun acsc (x) (asin (/ 1 x)))
+(defun asec (x) (acos (/ 1 x)))
+(defun csch (x) (/ 1 (sinh x)))
+(defun coth (x) (* (cosh x) (csch x)))
+(defun sech (x) (/ 1 (cosh x)))
+(defun acsch (x) (asinh (/ 1 x)))
+(defun acoth (x) (atanh (/ 1 x)))
+(defun asech (x) (acosh (/ 1 x)))
+
+#+(or :cmu :akcl :gcl)
+(defun cot (a)
+  (if (or (> a 1000.0) (< a -1000.0))
+    (/ (cos a) (sin a))
+    (/ 1.0 (tan a))))
+
+#+(or :cmu :akcl :gcl)
+(defun acot (a)
+  (if (> a 0.0)
+    (if (> a 1.0)
+       (atan (/ 1.0 a))
+       (- (/ pi 2.0) (atan a)))
+    (if (< a -1.0)
+       (- pi (atan (/ -1.0 a)))
+       (+ (/ pi 2.0) (atan (- a))))))
+
+; This is a Mantissa and Exponent function. 
+#+(or :cmu :akcl :gcl)
+(defun manexp (u)
+  (multiple-value-bind (f e s) 
+    (decode-float u)
+    (cons (* s f) e)))
+
+