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USING: kernel sequences multi-methods accessors math.vectors ;
IN: math.physics.pos
TUPLE: pos pos ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
GENERIC: distance ( a b -- c )
METHOD: distance { sequence sequence } v- norm ;
METHOD: distance { pos pos } [ pos>> ] bi@ distance ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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