Expression 7: polygon left parenthesis, "A" , "B" , "C" Subscript, "n" , Baseline , right parenthesispolygonA,B,Cn
7
Expression 8: "d" Subscript, "o" "t" , Baseline left parenthesis, "u" , "v" , right parenthesis equals left parenthesis, "u" . "x" "v" . "x" plus "u" . "y" "v" . "y" , right parenthesisdotu,v=u.xv.x+u.yv.y
8
Expression 9: "o" Subscript, "r" "t" "h" "o" , Baseline left parenthesis, "u" , right parenthesis equals left parenthesis, negative "u" . "y" , "u" . "x" , right parenthesisorthou=−u.y,u.x
9
Hidden Label: "r" equals "B" minus "A"r=B−A
Label
equals=
left parenthesis, 10 , negative 2 , right parenthesis10,−2
10
Expression 11: "y" equals "B" . "y" left brace, "A" . "x" less than or equal to "x" less than or equal to "B" . "x" , right bracey=B.yA.x≤x≤B.x
11
Expression 12: "y" equals "C" Subscript, "n" , Baseline . "y" left brace, "A" . "x" less than or equal to "x" less than or equal to "B" . "x" , right bracey=Cn.yA.x≤x≤B.x
12
Expression 13: "x" equals "A" . "x" left brace, "B" . "y" less than or equal to "y" less than or equal to "C" Subscript, "n" , Baseline . "y" , right bracex=A.xB.y≤y≤Cn.y
13
Expression 14: "x" equals "B" . "x" left brace, "B" . "y" less than or equal to "y" less than or equal to "C" Subscript, "n" , Baseline . "y" , right bracex=B.xB.y≤y≤Cn.y