1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
*DECK SYB32C
SUBROUTINE SYB32C (PPLUS,TAUP,POPI,M)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Evaluation of the $E_i$ function in 2D geometry.
*
*Copyright:
* Copyright (C) 2002 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): A. Hebert
*
*Parameters: input
* TAUP initial optical path.
* POPI delta optical path.
* M order of the Bickley function (equal to M+1).
*
*Parameters: output
* PPLUS value of the difference.
*
*-----------------------------------------------------------------------
*
*----
* SUBROUTINE ARGUMENTS
*----
REAL PPLUS,TAUP,POPI
INTEGER M
*----
* LOCAL VARIABLES
*----
PARAMETER (MKI3=600)
COMMON /BICKL3/BI3(0:MKI3),BI31(0:MKI3),BI32(0:MKI3),PAS3,XLIM3,L3
*
TAUQ=TAUP+POPI
IF(TAUP.GE.XLIM3) THEN
PPLUS=0.
ELSE IF(TAUQ.GE.XLIM3) THEN
PPLUS=TABKI(M+1,TAUP)
ELSE IF(POPI.LE.0.002) THEN
PPLUS=(TABKI(M,TAUP)+TABKI(M,TAUQ))*POPI*0.5
ELSE IF(POPI.LT.0.004) THEN
PQLUS=(TABKI(M,TAUP)+TABKI(M,TAUQ))*POPI*0.5
PRLUS=TABKI(M+1,TAUP)-TABKI(M+1,TAUQ)
FACT=500.0*(POPI-0.002)
PPLUS=PRLUS*FACT+PQLUS*(1.0-FACT)
ELSE
PPLUS=TABKI(M+1,TAUP)-TABKI(M+1,TAUQ)
ENDIF
RETURN
END
|
