diff options
Diffstat (limited to 'math/slalib/doc/cc2s.hlp')
| -rw-r--r-- | math/slalib/doc/cc2s.hlp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/math/slalib/doc/cc2s.hlp b/math/slalib/doc/cc2s.hlp new file mode 100644 index 00000000..8a16e76e --- /dev/null +++ b/math/slalib/doc/cc2s.hlp @@ -0,0 +1,33 @@ +.help cc2s Jun99 "Slalib Package" +.nf + + SUBROUTINE slCC2S (V, A, B) + + - - - - - + C C 2 S + - - - - - + + Direction cosines to spherical coordinates (single precision) + + Given: + V r(3) x,y,z vector + + Returned: + A,B r spherical coordinates in radians + + The spherical coordinates are longitude (+ve anticlockwise + looking from the +ve latitude pole) and latitude. The + Cartesian coordinates are right handed, with the x axis + at zero longitude and latitude, and the z axis at the + +ve latitude pole. + + If V is null, zero A and B are returned. + At either pole, zero A is returned. + + P.T.Wallace Starlink July 1989 + + Copyright (C) 1995 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |