Expression 4: polygon left parenthesis, 2 minus "x" Subscript, 1 , Baseline , 2 StartRoot, 3 , EndRoot minus "y" Subscript, 1 , Baseline , right parenthesispolygon2−x1,23−y1
4
Expression 5: polygon left parenthesis, 1sin left parenthesis, "t" Subscript, 1 , Baseline plus 145 , right parenthesis plus "x" Subscript, 1 , Baseline cos left parenthesis, "t" Subscript, 1 , Baseline , right parenthesis , StartRoot, 3 , EndRoot plus "y" Subscript, 1 , Baseline sin left parenthesis, "t" Subscript, 1 , Baseline , right parenthesis , right parenthesispolygon1sint1+145+x1cost1,3+y1sint1
5
Expression 6: polygon left parenthesis, negative 2sin left parenthesis, "t" Subscript, 1 , Baseline plus 145 , right parenthesis minus "x" Subscript, 1 , Baseline cos left parenthesis, "t" Subscript, 1 , Baseline , right parenthesis , 2 StartRoot, 3 , EndRoot minus "y" Subscript, 1 , Baseline sin left parenthesis, "t" Subscript, 1 , Baseline , right parenthesis , right parenthesispolygon−2sint1+145−x1cost1,23−y1sint1