era.rxr.md

eraRxr

atb = ERFA.rxr(a, b)

Multiply two r-matrices.

Given:

   a        double[3][3]    first r-matrix
   b        double[3][3]    second r-matrix

Returned:

   atb      double[3][3]    a * b

Note:

   It is permissible to re-use the same array for any of the
   arguments.

Called:

   eraCr        copy r-matrix

This revision: 2021 May 11

Copyright (C) 2013-2021, NumFOCUS Foundation. Derived, with permission, from the SOFA library.