diff options
Diffstat (limited to 'math/slalib/doc/prebn.hlp')
-rw-r--r-- | math/slalib/doc/prebn.hlp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/math/slalib/doc/prebn.hlp b/math/slalib/doc/prebn.hlp new file mode 100644 index 00000000..e2c1991b --- /dev/null +++ b/math/slalib/doc/prebn.hlp @@ -0,0 +1,36 @@ +.help prebn Jun99 "Slalib Package" +.nf + + SUBROUTINE slPRBN (BEP0, BEP1, RMATP) + + - - - - - - + P R B N + - - - - - - + + Generate the matrix of precession between two epochs, + using the old, pre-IAU1976, Bessel-Newcomb model, using + Kinoshita's formulation (double precision) + + Given: + BEP0 dp beginning Besselian epoch + BEP1 dp ending Besselian epoch + + Returned: + RMATP dp(3,3) precession matrix + + The matrix is in the sense V(BEP1) = RMATP * V(BEP0) + + Reference: + Kinoshita, H. (1975) 'Formulas for precession', SAO Special + Report No. 364, Smithsonian Institution Astrophysical + Observatory, Cambridge, Massachusetts. + + Called: slDEUL + + P.T.Wallace Starlink 23 August 1996 + + Copyright (C) 1996 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |