amb = ERFA.pvmpv(a, b)
Subtract one pv-vector from another.
a double[2][3] first pv-vector
b double[2][3] second pv-vector
amb double[2][3] a - b
It is permissible to re-use the same array for any of the
arguments.
eraPmp p-vector minus p-vector
This revision: 2021 May 11
Copyright (C) 2013-2021, NumFOCUS Foundation. Derived, with permission, from the SOFA library.