Cartesian Product
$$A \times B =$$
{ (anger, anger),
(anger, anticipation),
(anger, disgust),
(anger, fear),
(anger, joy),
(anger, sadness),
(anger, surprise),
(anger, trust),
(anticipation, anger),
(anticipation, anticipation),
(anticipation, disgust),
(anticipation, fear),
(anticipation, joy),
(anticipation, sadness),
(anticipation, surprise),
(anticipation, trust),
(disgust, anger),
(disgust, anticipation),
(disgust, disgust),
(disgust, fear),
(disgust, joy),
(disgust, sadness),
(disgust, surprise),
(disgust, trust),
(fear, anger),
(fear, anticipation),
(fear, disgust),
(fear, fear),
(fear, joy),
(fear, sadness),
(fear, surprise),
(fear, trust),
(joy, anger),
(joy, anticipation),
(joy, disgust),
(joy, fear),
(joy, joy),
(joy, sadness),
(joy, surprise),
(joy, trust),
(sadness, anger),
(sadness, anticipation),
(sadness, disgust),
(sadness, fear),
(sadness, joy),
(sadness, sadness),
(sadness, surprise),
(sadness, trust),
(surprise, anger),
(surprise, anticipation),
(surprise, disgust),
(surprise, fear),
(surprise, joy),
(surprise, sadness),
(surprise, surprise),
(surprise, trust),
(trust, anger),
(trust, anticipation),
(trust, disgust),
(trust, fear),
(trust, joy),
(trust, sadness),
(trust, surprise),
(trust, trust) }
Robert Plutchik