history.txt

1、%Unknowndate%x(i1)x(i)))^26(tx(i))(x(i1)x(i))endendendfunctionm=zhuiganfa(abcf)n=length(b)l=zeros(1n)u=zeros(1n)u(1)=b(1)fi=2:nl(i1)=a(i1)u(i1)u(i)=b(i)l(i1)c(i1)endk(1)=f(1)fi=2:nk(i)=f(i)l(i1)k(i1)endm(n)=k(n)u(n)fi=n1

2、:1:1m(i)=(k(i)c(i)m(i1))u(i)enda=length(x)A=zeros(aa)s=zeros(1a1)u=zeros(1a)r=zeros(1a)g=zeros(1a)m=zeros(1a)k=zeros(1a)fi=2:a1u(i)=(x(i)x(i1))((x(i)x(i1))(x(i1)x(i)))r(i)=1u(i)g(i)=6((y(i1)y(i))(x(i1)x(i))((y(i)y(i1))(x

3、(i)x(i1))))((x(i1)x(i))(x(i)x(i1)))enddisp([0第一類邊界條件])disp([1第二類邊界條件])disp([2第一類多點(diǎn)插值并畫(huà)出圖])q=input(選擇邊界條件類型)%disp([2第三類邊界條件])switch(q)case0y01=input(輸入邊界條件y0=)y0n=input(輸入邊界條件yn=)g(1)=6((y(2)y(1))(x(2)x(1))y01)(x(2)x(1))g