Expression 6: "p" Subscript, "x" , Baseline "x" plus "p" Subscript, "y" , Baseline "y" equals "c" left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , right parenthesis left brace, 0 less than or equal to "x" , right brace left brace, 0 less than or equal to "y" , right bracepxx+pyy=cx1,y10≤x0≤y
6
Expression 7: "p" Subscript, "x" , Baseline equals 1px=1
Expression 10: "L" left parenthesis, "x" , "y" , lambda , right parenthesis equals "c" left parenthesis, "x" , "y" , right parenthesis minus lambda left parenthesis, "U" left parenthesis, "x" , "y" , right parenthesis minus "u" , right parenthesisLx,y,λ=cx,y−λUx,y−u
10
Expression 11: left bracket, StartFraction, "d" Over "d" "x" Subscript, 1 , Baseline , EndFraction left parenthesis, "L" left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , lambda Subscript, 1 , Baseline , right parenthesis , right parenthesis , StartFraction, "d" Over "d" "y" Subscript, 1 , Baseline , EndFraction left parenthesis, "L" left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , lambda Subscript, 1 , Baseline , right parenthesis , right parenthesis , StartFraction, "d" Over "d" lambda Subscript, 1 , Baseline , EndFraction left parenthesis, "L" left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , lambda Subscript, 1 , Baseline , right parenthesis , right parenthesis , right bracket tilde left bracket, 0 , 0 , 0 , right bracketddx1Lx1,y1,λ1,ddy1Lx1,y1,λ1,ddλ1Lx1,y1,λ1~0,0,0