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28 lines
772 B
Fortran
28 lines
772 B
Fortran
*DECK ZEXP
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SUBROUTINE ZEXP (AR, AI, BR, BI)
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C***BEGIN PROLOGUE ZEXP
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C***SUBSIDIARY
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C***PURPOSE Subsidiary to ZBESH, ZBESI, ZBESJ, ZBESK, ZBESY, ZAIRY and
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C ZBIRY
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C***LIBRARY SLATEC
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C***TYPE ALL (ZEXP-A)
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C***AUTHOR Amos, D. E., (SNL)
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C***DESCRIPTION
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C
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C DOUBLE PRECISION COMPLEX EXPONENTIAL FUNCTION B=EXP(A)
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C
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C***SEE ALSO ZAIRY, ZBESH, ZBESI, ZBESJ, ZBESK, ZBESY, ZBIRY
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C***ROUTINES CALLED (NONE)
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C***REVISION HISTORY (YYMMDD)
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C 830501 DATE WRITTEN
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C 910415 Prologue converted to Version 4.0 format. (BAB)
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C***END PROLOGUE ZEXP
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DOUBLE PRECISION AR, AI, BR, BI, ZM, CA, CB
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C***FIRST EXECUTABLE STATEMENT ZEXP
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ZM = EXP(AR)
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CA = ZM*COS(AI)
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CB = ZM*SIN(AI)
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BR = CA
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BI = CB
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RETURN
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END
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