23 lines
549 B
Fortran
23 lines
549 B
Fortran
SUBROUTINE ZSHCH(ZR, ZI, CSHR, CSHI, CCHR, CCHI)
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C***BEGIN PROLOGUE ZSHCH
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C***REFER TO ZBESK,ZBESH
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C
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C ZSHCH COMPUTES THE COMPLEX HYPERBOLIC FUNCTIONS CSH=SINH(X+I*Y)
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C AND CCH=COSH(X+I*Y), WHERE I**2=-1.
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C
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C***ROUTINES CALLED (NONE)
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C***END PROLOGUE ZSHCH
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C
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DOUBLE PRECISION CCHI, CCHR, CH, CN, CSHI, CSHR, SH, SN, ZI, ZR,
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* DCOSH, DSINH
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SH = DSINH(ZR)
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CH = DCOSH(ZR)
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SN = DSIN(ZI)
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CN = DCOS(ZI)
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CSHR = SH*CN
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CSHI = CH*SN
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CCHR = CH*CN
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CCHI = SH*SN
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RETURN
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END
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