ppsp

erfa.ppsp(a, s, b)[source]

Wrapper for ERFA function eraPpsp.

Parameters

a : double array

s : double array

b : double array

Returns

apsb : double array

Notes

The ERFA documentation is below.

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 e r a P p s p
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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

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