수식 2: "P" Subscript, 1 , Baseline equals left parenthesis, 2sin left parenthesis, "L" , right parenthesis , 2cos left parenthesis, "L" , right parenthesis , 1. "L" , right parenthesisP1=2sinL,2cosL,1.L
2
수식 3: "P" Subscript, 2 , Baseline equals left parenthesis, 2sin left parenthesis, "L" minus pi , right parenthesis , 2cos left parenthesis, "L" minus pi , right parenthesis , "L" , right parenthesisP2=2sinL−π,2cosL−π,L
3
수식 4: segment left parenthesis, "P" Subscript, 1 , Baseline , "P" Subscript, 2 , Baseline , right parenthesissegmentP1,P2
