นิพจน์ 5: "v" Subscript, 4 , Baseline equals vector left parenthesis, left parenthesis, 3 , 0 , 0 , right parenthesis , left parenthesis, 3 , negative sin left parenthesis, "T" Subscript, 1 , Baseline plus 3 StartFraction, pi Over 2 , EndFraction , right parenthesis , 0 left brace, 3 StartFraction, pi Over 2 , EndFraction less than or equal to "T" Subscript, 1 , Baseline less than or equal to StartFraction, 4 pi Over 2 , EndFraction , right brace , right parenthesis , right parenthesisv4=vector3,0,0,3,−sinT1+3π2,03π2≤T1≤4π2
5
นิพจน์ 6:
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นิพจน์ 7: "T" Subscript, 1 , Baseline to "T" Subscript, 1 , Baseline plus 1T1→T1+1
