運算式 4: "R" left parenthesis, "t" , right parenthesis equals "t" positive sine left parenthesis, 3 StartFraction, "t" squared Over 2 , EndFraction , right parenthesisRt=t+sin3t22
4
exact vs approx parameterization
5
運算式 6: Start integral from 0 to "x" , end integral, .1 StartRoot, 1 plus "t" squared , EndRoot "d" "t" left brace, "x" greater than or equal to 0 , right brace∫x0.11+t2dtx≥0
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運算式 7: StartFraction, .1 "x" squared Over 2 , EndFraction left brace, "x" greater than or equal to 0 , right brace.1x22x≥0
