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Commit | Line | Data |
---|---|---|
21886bb6 | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.2 1996/10/30 08:29:15 cernlib | |
6 | * Version 7.04 | |
7 | * | |
8 | * Revision 1.1.1.1 1996/04/12 15:29:29 plothow | |
9 | * Version 7.01 | |
10 | * | |
11 | * | |
12 | #include "pdf/pilot.h" | |
13 | SUBROUTINE RXDV (X,QQ,XDV) | |
14 | C....................................................................... | |
15 | C. | |
16 | C. DV | |
17 | C. | |
18 | C....................................................................... | |
19 | #include "pdf/impdp.inc" | |
20 | #include "pdf/expdp.inc" | |
21 | + BBETA | |
22 | DATA XLAM /0.50D00/, Q0/2.1D0/, Q00/1.8D0/ | |
23 | DATA ONED/1.D0/, THRED/3.D0/ | |
24 | IF(QQ.LT.Q0) QQ=Q0 | |
25 | S=LOG(QQ/XLAM**2)/LOG(Q00/XLAM**2) | |
26 | S=LOG(S) | |
27 | ETA3=0.85D00-0.24D00*S | |
28 | ETA4=3.35D00+0.816D00*S | |
29 | XDV=(X**ETA3)*((ONED-X)**ETA4)/BBETA(ETA3,ONED+ETA4) | |
30 | RETURN | |
31 | END |