İfade 9: "d" Subscript, "o" "t" , Baseline left parenthesis, "a" , "b" , right parenthesis equals "a" . "x" "b" . "x" plus "a" . "y" "b" . "y"dota,b=a.xb.x+a.yb.y
9
İfade 10: "d" Subscript, "o" "t" , Baseline left parenthesis, "u" Subscript, "v" "w" , Baseline , left parenthesis, "x" , "y" , right parenthesis , right parenthesis equals negative 1dotuvw,x,y=−1