src/numerical/slatec/dbesy1.lisp

   1 ;;; Compiled by f2cl version:
   2 ;;; ("f2cl1.l,v 46c1f6a93b0d 2012/05/03 04:40:28 toy $"
   3 ;;;  "f2cl2.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   4 ;;;  "f2cl3.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   5 ;;;  "f2cl4.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   6 ;;;  "f2cl5.l,v 46c1f6a93b0d 2012/05/03 04:40:28 toy $"
   7 ;;;  "f2cl6.l,v 1d5cbacbb977 2008/08/24 00:56:27 rtoy $"
   8 ;;;  "macros.l,v fceac530ef0c 2011/11/26 04:02:26 toy $")
   9
  10 ;;; Using Lisp CMU Common Lisp snapshot-2012-04 (20C Unicode)
  11 ;;;
  12 ;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
  13 ;;;           (:coerce-assigns :as-needed) (:array-type ':simple-array)
  14 ;;;           (:array-slicing nil) (:declare-common nil)
  15 ;;;           (:float-format double-float))
  16
  17 (in-package :slatec)
  18
  19
  20 (let ((nty1 0)
  21       (xmin 0.0)
  22       (xsml 0.0)
  23       (by1cs
  24        (make-array 20
  25                    :element-type 'double-float
  26                    :initial-contents '(0.032080471006119084 1.2627078974335004
  27                                        0.006499961899923175
  28                                        -0.08936164528860505
  29                                        0.013250881221757096
  30                                        -8.979059119648352e-4
  31                                        3.647361487958307e-5
  32                                        -1.0013743816660006e-6
  33                                        1.994539657390174e-8
  34                                        -3.023065601803382e-10
  35                                        3.609878156947812e-12
  36                                        -3.4874882972875824e-14
  37                                        2.7838789715591767e-16
  38                                        -1.8678709686194878e-18
  39                                        1.0685315339116827e-20
  40                                        -5.274721956684482e-23
  41                                        2.2701994031556643e-25
  42                                        -8.595390353945232e-28
  43                                        2.8854043798337947e-30
  44                                        -8.647541138937173e-33)))
  45       (twodpi 0.6366197723675814)
  46       (first$ nil))
  47   (declare (type (f2cl-lib:integer4) nty1)
  48            (type (double-float) xmin xsml twodpi)
  49            (type (simple-array double-float (20)) by1cs)
  50            (type f2cl-lib:logical first$))
  51   (setq first$ f2cl-lib:%true%)
  52   (defun dbesy1 (x)
  53     (declare (type (double-float) x))
  54     (prog ((ampl 0.0) (theta 0.0) (y 0.0) (dbesy1 0.0))
  55       (declare (type (double-float) dbesy1 y theta ampl))
  56       (cond
  57         (first$
  58          (setf nty1
  59                  (initds by1cs 20
  60                   (* 0.1f0 (f2cl-lib:freal (f2cl-lib:d1mach 3)))))
  61          (setf xmin
  62                  (* 1.571
  63                     (exp
  64                      (+
  65                       (max (f2cl-lib:flog (f2cl-lib:d1mach 1))
  66                            (- (f2cl-lib:flog (f2cl-lib:d1mach 2))))
  67                       0.01))))
  68          (setf xsml (f2cl-lib:fsqrt (* 4.0 (f2cl-lib:d1mach 3))))))
  69       (setf first$ f2cl-lib:%false%)
  70       (if (<= x 0.0) (xermsg "SLATEC" "DBESY1" "X IS ZERO OR NEGATIVE" 1 2))
  71       (if (> x 4.0) (go label20))
  72       (if (< x xmin) (xermsg "SLATEC" "DBESY1" "X SO SMALL Y1 OVERFLOWS" 3 2))
  73       (setf y 0.0)
  74       (if (> x xsml) (setf y (* x x)))
  75       (setf dbesy1
  76               (+ (* twodpi (f2cl-lib:flog (* 0.5 x)) (dbesj1 x))
  77                  (/ (+ 0.5 (dcsevl (- (* 0.125 y) 1.0) by1cs nty1)) x)))
  78       (go end_label)
  79      label20
  80       (multiple-value-bind (var-0 var-1 var-2)
  81           (d9b1mp x ampl theta)
  82         (declare (ignore var-0))
  83         (setf ampl var-1)
  84         (setf theta var-2))
  85       (setf dbesy1 (* ampl (sin theta)))
  86       (go end_label)
  87      end_label
  88       (return (values dbesy1 nil)))))
  89
  90 (in-package #:cl-user)
  91 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  92 (eval-when (:load-toplevel :compile-toplevel :execute)
  93   (setf (gethash 'fortran-to-lisp::dbesy1
  94                  fortran-to-lisp::*f2cl-function-info*)
  95           (fortran-to-lisp::make-f2cl-finfo :arg-types '((double-float))
  96                                             :return-values '(nil)
  97                                             :calls '(fortran-to-lisp::d9b1mp
  98                                                      fortran-to-lisp::dcsevl
  99                                                      fortran-to-lisp::dbesj1
 100                                                      fortran-to-lisp::xermsg
 101                                                      fortran-to-lisp::initds
 102                                                      fortran-to-lisp::d1mach))))
 103