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- ;;; Compiled by f2cl version 2.0 beta 2002-05-06
- ;;;
- ;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
- ;;; (:coerce-assigns :as-needed) (:array-type ':simple-array)
- ;;; (:array-slicing nil) (:declare-common nil)
- ;;; (:float-format double-float))
-
- (in-package "SLATEC")
-
-
- (let ((nti1 0)
- (xmin 0.0)
- (xsml 0.0)
- (xmax 0.0)
- (bi1cs (make-array 17 :element-type 'double-float))
- (first nil))
- (declare (type f2cl-lib:logical first)
- (type (simple-array double-float (17)) bi1cs)
- (type double-float xmax xsml xmin)
- (type f2cl-lib:integer4 nti1))
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (1) ((1 17))) -0.0019717132610998596)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (2) ((1 17))) 0.4073488766754648)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (3) ((1 17))) 0.03483899429995946)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (4) ((1 17))) 0.0015453945563001237)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (5) ((1 17))) 4.188852109837779e-5)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (6) ((1 17))) 7.649026764836211e-7)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (7) ((1 17))) 1.0042493924741178e-8)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (8) ((1 17))) 9.932207791923812e-11)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (9) ((1 17))) 7.663801791844763e-13)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (10) ((1 17))) 4.741418923816739e-15)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (11) ((1 17))) 2.4041144040745183e-17)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (12) ((1 17))) 1.0171505007093713e-19)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (13) ((1 17))) 3.645093565786695e-22)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (14) ((1 17))) 1.1205749502562039e-24)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (15) ((1 17))) 2.987544193446809e-27)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (16) ((1 17))) 6.973231093919469e-30)
- (f2cl-lib:fset (f2cl-lib:fref bi1cs (17) ((1 17))) 1.43679482206208e-32)
- (setq first f2cl-lib:%true%)
- (defun dbesi1 (x)
- (declare (type double-float x))
- (prog ((y 0.0) (dbesi1 0.0))
- (declare (type double-float dbesi1 y))
- (cond
- (first
- (setf nti1
- (initds bi1cs 17
- (* 0.1f0 (f2cl-lib:freal (f2cl-lib:d1mach 3)))))
- (setf xmin (* 2.0 (f2cl-lib:d1mach 1)))
- (setf xsml (f2cl-lib:fsqrt (* 4.5 (f2cl-lib:d1mach 3))))
- (setf xmax (f2cl-lib:flog (f2cl-lib:d1mach 2)))))
- (setf first f2cl-lib:%false%)
- (setf y (coerce (abs x) 'double-float))
- (if (> y 3.0) (go label20))
- (setf dbesi1 0.0)
- (if (= y 0.0) (go end_label))
- (if (<= y xmin)
- (xermsg "SLATEC" "DBESI1" "ABS(X) SO SMALL I1 UNDERFLOWS" 1 1))
- (if (> y xmin) (setf dbesi1 (* 0.5 x)))
- (if (> y xsml)
- (setf dbesi1
- (* x (+ 0.875 (dcsevl (- (/ (* y y) 4.5) 1.0) bi1cs nti1)))))
- (go end_label)
- label20
- (if (> y xmax)
- (xermsg "SLATEC" "DBESI1" "ABS(X) SO BIG I1 OVERFLOWS" 2 2))
- (setf dbesi1 (* (exp y) (dbsi1e x)))
- (go end_label)
- end_label
- (return (values dbesi1 nil)))))
-
-