表达式14: "c" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baselinec1=A1−C1
equals=
negative 10−10
14
表达式15: "c" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline minus "C" Subscript, 2 , Baselinec2=A2−C2
equals=
negative 3−3
15
表达式16: "K" Subscript, "o" "r" "s" , Baseline left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , "x" Subscript, 2 , Baseline , "y" Subscript, 2 , Baseline , "x" Subscript, 3 , Baseline , "y" Subscript, 3 , Baseline , "x" Subscript, 4 , Baseline , "y" Subscript, 4 , Baseline , right parenthesis equals left parenthesis, "x" Subscript, 2 , Baseline minus "x" Subscript, 1 , Baseline , right parenthesis left parenthesis, "y" Subscript, 4 , Baseline minus "y" Subscript, 3 , Baseline , right parenthesis minus left parenthesis, "y" Subscript, 2 , Baseline minus "y" Subscript, 1 , Baseline , right parenthesis left parenthesis, "x" Subscript, 4 , Baseline minus "x" Subscript, 3 , Baseline , right parenthesisKorsx1,y1,x2,y2,x3,y3,x4,y4=x2−x1y4−y3−y2−y1x4−x3
16
表达式17: "A" Subscript, "C" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis equals "K" Subscript, "o" "r" "s" , Baseline left parenthesis, "A" Subscript, 1 , Baseline , "A" Subscript, 2 , Baseline , "C" Subscript, 1 , Baseline , "C" Subscript, 2 , Baseline , "C" Subscript, 1 , Baseline , "C" Subscript, 2 , Baseline , "x" , "y" , right parenthesisACXx,y=KorsA1,A2,C1,C2,C1,C2,x,y
17
表达式18: "C" Subscript, "B" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis equals "K" Subscript, "o" "r" "s" , Baseline left parenthesis, "C" Subscript, 1 , Baseline , "C" Subscript, 2 , Baseline , "B" Subscript, 1 , Baseline , "B" Subscript, 2 , Baseline , "B" Subscript, 1 , Baseline , "B" Subscript, 2 , Baseline , "x" , "y" , right parenthesisCBXx,y=KorsC1,C2,B1,B2,B1,B2,x,y
18
表达式19: "B" Subscript, "A" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis equals "K" Subscript, "o" "r" "s" , Baseline left parenthesis, "B" Subscript, 1 , Baseline , "B" Subscript, 2 , Baseline , "A" Subscript, 1 , Baseline , "A" Subscript, 2 , Baseline , "A" Subscript, 1 , Baseline , "A" Subscript, 2 , Baseline , "x" , "y" , right parenthesisBAXx,y=KorsB1,B2,A1,A2,A1,A2,x,y
19
表达式20: "S" left parenthesis, "x" , "y" , right parenthesis equals left brace, "A" Subscript, "C" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis "C" Subscript, "B" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis greater than 0 , right brace left brace, "C" Subscript, "B" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis "B" Subscript, "A" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis greater than 0 , right brace left brace, "B" Subscript, "A" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis "A" Subscript, "C" "X" , Baseline left parenthesis, "x" , "y" , right parenthesis greater than 0 , right braceSx,y=ACXx,yCBXx,y>0CBXx,yBAXx,y>0BAXx,yACXx,y>0
