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`pvxpv(`

`a`, `b`)

[SOFA] Returns the outer product of two pv-vectors

and
`a`

. The parameters must have equal dimensions, of which
the first one must be equal to 2 and the second one to 3. The result
gets the same dimensions as the parameters.
`b`

If the position and velocity components of

and
`a`

are `b``(ap, av)`

and `(bp, bv)`

, then the
result is the pair of vectors `(ap x bp, ap x bv + av x bp)`

.