Avaldis 30: "u" equals left parenthesis, "x" Subscript, 0 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis , "y" Subscript, 0 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis , right parenthesisu=x0t+x1t+x2t+x3t,y0t+y1t+y2t+y3t
domeeni t miinimum: 00
less than or equal to "t" less than or equal to≤t≤
