③ 10-point formula(n=2) I(f=w,f(s) +uf(s2 2 Gus points, 2 weild dynamIa We ih 4 parameters =0o+1+ Q25+a5(cubic Exac integral r(2a++029+029)ds 20o+202 3 Approxiate integral 工()=+)+(451+吗51 4+4分2+分引3 +W2 LW.LW=1 以属努=3 +分=0