s2xpv¶

erfa.s2xpv(s1, s2, pv)[source]¶

Multiply a pv-vector by two scalars.

Parameters:

s1double array
s2double array
pvdouble array

Returns:

spvdouble array

Notes

Wraps ERFA function eraS2xpv. The ERFA documentation is:

- - - - - - - - -
 e r a S 2 x p v
- - - - - - - - -

Multiply a pv-vector by two scalars.

Given:
   s1     double         scalar to multiply position component by
   s2     double         scalar to multiply velocity component by
   pv     double[2][3]   pv-vector

Returned:
   spv    double[2][3]   pv-vector: p scaled by s1, v scaled by s2

Note:
   It is permissible for pv and spv to be the same array.

Called:
   eraSxp       multiply p-vector by scalar

This revision:  2021 May 11

Copyright (C) 2013-2023, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.

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s2xpv¶