zr

erfa.zr()[source]

Wrapper for ERFA function eraZr.

Returns
rdouble array

Notes

The ERFA documentation is below.

- - - - - -
 e r a Z r
- - - - - -

Initialize an r-matrix to the null matrix.

Returned:
   r        double[3][3]    r-matrix

Copyright (C) 2013-2019, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.