Expression 6: "x" Subscript, "l" , Baseline equals "a" "x" plus "b" "y"xl=ax+by
6
Expression 7: "y" Subscript, "l" , Baseline equals "c" "x" plus "d" "y"yl=cx+dy
7
Expression 8: max left parenthesis, StartAbsoluteValue, "x" Subscript, "l" , Baseline , EndAbsoluteValue , StartAbsoluteValue, "y" Subscript, "l" , Baseline , EndAbsoluteValue , right parenthesis less than or equal to 1maxxl,yl≤1