Notes
These operations are primarily meant to be used with math.vectors.simd types. The software fallbacks for types not supported by hardware will not perform well.

vshuffle ( v perm -- w )

vbroadcast ( u n -- v )

hlshift ( v n -- w )

hrshift ( v n -- w )

vmerge ( u v -- w )

(vmerge) ( u v -- h t )

See the math.vectors.conversion vocabulary for packing, unpacking, and converting vectors.