Mercurial > octave-nkf
view libcruft/amos/cshch.f @ 14193:72aebe619641 stable rc-3-6-0-0
3.6.0-rc0 release candidate
* configure.ac (AC_INIT): Version is now 3.6.0-rc0.
(OCTAVE_RELEASE_DATE): Now 2012-01-10.
(OCTAVE_API_VERSION_NUMBER): Now 47.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 10 Jan 2012 16:43:41 -0500 |
parents | 82be108cc558 |
children |
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SUBROUTINE CSHCH(Z, CSH, CCH) C***BEGIN PROLOGUE CSHCH C***REFER TO CBESK,CBESH C C CSHCH COMPUTES THE COMPLEX HYPERBOLIC FUNCTIONS CSH=SINH(X+I*Y) C AND CCH=COSH(X+I*Y), WHERE I**2=-1. C C***ROUTINES CALLED (NONE) C***END PROLOGUE CSHCH COMPLEX CCH, CSH, Z REAL CCHI, CCHR, CH, CN, CSHI, CSHR, SH, SN, X, Y, COSH, SINH X = REAL(Z) Y = AIMAG(Z) SH = SINH(X) CH = COSH(X) SN = SIN(Y) CN = COS(Y) CSHR = SH*CN CSHI = CH*SN CSH = CMPLX(CSHR,CSHI) CCHR = CH*CN CCHI = SH*SN CCH = CMPLX(CCHR,CCHI) RETURN END