DDDDDDDDDDDDDDDDDDDDDDDDDDD目录实验 1 代数插值实验（一）1实验 2 代数插值实验（二）4实验 3 数据拟合实验 7实验 4 数值积分实验 9实验 5 解非线性方程实验 11实验 6 解线性方程组实验 13实验 7 解非线性方程组实验 15实验 8 解常微分方程组---导弹跟踪问题仿真实验 171DD0MatlabDDDDDDDDDDDDDD.□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□MATLAB□□□□□□□□□□□□□□□□□□□MATLAB□□□□□□□□Matlab 叮叮叮叮叮□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDD□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□Lagrange□□□□□□□□□□□□□□□□□a□□□□□Lagrange□□□□□■,y)}N□N□Lagrangekkk=0□□□□□□□□□□□□□□□□□□□,y)hkkk=0Lagrange□□□□LN,K(x)二))/(円(x—x)(氐=0,...,N)xjkj=oj丰 kN□Lagrange□□□□□□□P(x)=迓 yL(x)kk=0N,□□□□□XUY□□□□x□□□x)□□nyy)n□□□□□□□□□□□□□□□□□□□□□□□12345□□□□□□□□□□□□□□□□□□a□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□a□□□□□□□□□□□□□□□□□□□□□□a□□□□□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDD□□□□□function[C,L]=lagran(X,Y)%Input%-Xisavectorthatcontainsalistofabscissas-Yisavectorthatcontainsalistofordinates%NUMERICALMETHODS:MatlabPrograms%(c)2004byJohnH.MathewsandKurtisD.Fink%ComplementarySoftwaretoaccompanythetextbook:%NUMERICALMETHODS:UsingMatlab,FourthEdition2DD1DDDDDDDDDj=%Output-Cisamatrixthatcontainsthecoefficentsof%theLagrangeinterpolatorypolynomial%-LisamatrixthatcontainstheLagrange%coefficientpolynomials3%ISBN:0-13-065248-2%Prentice-HallPub.Inc.%OneLakeStreet%UpperSaddleRiver,NJ07458w=length(X);n=w-1;L=zeros(w,w);%FormtheLagrangecoefficientpolynomialsfork=1:n+1V=1;forj=1:n+1ifk~=jV=conv(V,poly(X(j)))/(X(k)-X(j));endendL(k,:)=V;end%DeterminethecoefficientsoftheLagrangeinterpolator%polynomialC=Y*L;=u—3(d—S'(x)100=u(k=2,3,…,N—2)k=u—3(S'(x)—d)N-1NN-14实验 2 代数插值实验（二...
