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eraPpsp

apsb = ERFA.ppsp(a, s, b)

P-vector plus scaled p-vector.

Given:

   a      double[3]     first p-vector
   s      double        scalar (multiplier for b)
   b      double[3]     second p-vector

Returned:

   apsb   double[3]     a + s*b

Note:

   It is permissible for any of a, b and apsb to be the same array.

Called:

   eraSxp       multiply p-vector by scalar
   eraPpp       p-vector plus p-vector

This revision: 2021 May 11

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