2
* $Id: dgauss.f,v 1.2 2007/01/07 00:14:07 madgraph Exp $
5
* Revision 1.2 2007/01/07 00:14:07 madgraph
6
* Merged version 4.1 to main branch
8
* Revision 1.1.2.1 2006/09/29 23:35:23 madgraph
9
* Introducing MLM matching
11
* Revision 1.1.1.1 1996/04/01 15:02:13 mclareni
15
FUNCTION DGAUSS(F,A,B,EPS)
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IMPLICIT DOUBLE PRECISION (A-H,O-Z)
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PARAMETER (NAME = 'DGAUSS')
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* $Id: dgauss.f,v 1.2 2007/01/07 00:14:07 madgraph Exp $
25
* Revision 1.2 2007/01/07 00:14:07 madgraph
26
* Merged version 4.1 to main branch
28
* Revision 1.1.2.1 2006/09/29 23:35:23 madgraph
29
* Introducing MLM matching
31
* Revision 1.1.1.1 1996/04/01 15:02:13 mclareni
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PARAMETER (Z1 = 1, HF = Z1/2, CST = 5*Z1/1000)
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DATA X( 1) /9.6028985649753623D-1/, W( 1) /1.0122853629037626D-1/
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DATA X( 2) /7.9666647741362674D-1/, W( 2) /2.2238103445337447D-1/
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DATA X( 3) /5.2553240991632899D-1/, W( 3) /3.1370664587788729D-1/
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DATA X( 4) /1.8343464249564980D-1/, W( 4) /3.6268378337836198D-1/
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DATA X( 5) /9.8940093499164993D-1/, W( 5) /2.7152459411754095D-2/
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DATA X( 6) /9.4457502307323258D-1/, W( 6) /6.2253523938647893D-2/
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DATA X( 7) /8.6563120238783174D-1/, W( 7) /9.5158511682492785D-2/
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DATA X( 8) /7.5540440835500303D-1/, W( 8) /1.2462897125553387D-1/
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DATA X( 9) /6.1787624440264375D-1/, W( 9) /1.4959598881657673D-1/
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DATA X(10) /4.5801677765722739D-1/, W(10) /1.6915651939500254D-1/
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DATA X(11) /2.8160355077925891D-1/, W(11) /1.8260341504492359D-1/
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DATA X(12) /9.5012509837637440D-2/, W(12) /1.8945061045506850D-1/
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3 S8=S8+W(I)*(F(C1+U)+F(C1-U))
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4 S16=S16+W(I)*(F(C1+U)+F(C1-U))
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IF(ABS(S16-C2*S8) .LE. EPS*(1+ABS(S16))) THEN
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IF(1+CONST*ABS(C2) .NE. 1) GO TO 2
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WRITE(*,*) NAME,'ERROR: TOO HIGH ACCURACY REQUIRED'