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30 lines
1,017 B
Fortran
30 lines
1,017 B
Fortran
*DECK DQWGTC
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DOUBLE PRECISION FUNCTION DQWGTC (X, C, P2, P3, P4, KP)
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C***BEGIN PROLOGUE DQWGTC
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C***SUBSIDIARY
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C***PURPOSE This function subprogram is used together with the
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C routine DQAWC and defines the WEIGHT function.
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C***LIBRARY SLATEC
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C***TYPE DOUBLE PRECISION (QWGTC-S, DQWGTC-D)
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C***KEYWORDS CAUCHY PRINCIPAL VALUE, WEIGHT FUNCTION
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C***AUTHOR Piessens, Robert
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C Applied Mathematics and Programming Division
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C K. U. Leuven
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C de Doncker, Elise
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C Applied Mathematics and Programming Division
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C K. U. Leuven
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C***SEE ALSO DQK15W
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C***ROUTINES CALLED (NONE)
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C***REVISION HISTORY (YYMMDD)
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C 810101 DATE WRITTEN
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C 830518 REVISION DATE from Version 3.2
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C 891214 Prologue converted to Version 4.0 format. (BAB)
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C 900328 Added TYPE section. (WRB)
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C***END PROLOGUE DQWGTC
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C
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DOUBLE PRECISION C,P2,P3,P4,X
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INTEGER KP
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C***FIRST EXECUTABLE STATEMENT DQWGTC
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DQWGTC = 0.1D+01/(X-C)
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RETURN
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END
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