Index exceeds matrix dimensions.什么错误啊?a=zeros(8);l=zeros(8);u=zeros(8);for (i=2:8)a(i,i)=5;a(i,i-1)=-2;a(i-1,i)=-2;l(i,i)=1;enda(1,1)=2;l(1,1)=1;u(1,1)=a(1,1);for (i=2:8)l(i,i-1)=a(i,i-1)/u(i-1,i-1);u(i,i)=b(i,i)-c(i-1,i)*l(i,i-1);endalud=[
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![Index exceeds matrix dimensions.什么错误啊?a=zeros(8);l=zeros(8);u=zeros(8);for (i=2:8)a(i,i)=5;a(i,i-1)=-2;a(i-1,i)=-2;l(i,i)=1;enda(1,1)=2;l(1,1)=1;u(1,1)=a(1,1);for (i=2:8)l(i,i-1)=a(i,i-1)/u(i-1,i-1);u(i,i)=b(i,i)-c(i-1,i)*l(i,i-1);endalud=[](/uploads/image/z/10643889-57-9.jpg?t=Index+exceeds+matrix+dimensions.%E4%BB%80%E4%B9%88%E9%94%99%E8%AF%AF%E5%95%8A%3Fa%3Dzeros%288%29%3Bl%3Dzeros%288%29%3Bu%3Dzeros%288%29%3Bfor+%28i%3D2%3A8%29a%28i%2Ci%29%3D5%3Ba%28i%2Ci-1%29%3D-2%3Ba%28i-1%2Ci%29%3D-2%3Bl%28i%2Ci%29%3D1%3Benda%281%2C1%29%3D2%3Bl%281%2C1%29%3D1%3Bu%281%2C1%29%3Da%281%2C1%29%3Bfor+%28i%3D2%3A8%29l%28i%2Ci-1%29%3Da%28i%2Ci-1%29%2Fu%28i-1%2Ci-1%29%3Bu%28i%2Ci%29%3Db%28i%2Ci%29-c%28i-1%2Ci%29%2Al%28i%2Ci-1%29%3Bendalud%3D%5B)
Index exceeds matrix dimensions.什么错误啊?a=zeros(8);l=zeros(8);u=zeros(8);for (i=2:8)a(i,i)=5;a(i,i-1)=-2;a(i-1,i)=-2;l(i,i)=1;enda(1,1)=2;l(1,1)=1;u(1,1)=a(1,1);for (i=2:8)l(i,i-1)=a(i,i-1)/u(i-1,i-1);u(i,i)=b(i,i)-c(i-1,i)*l(i,i-1);endalud=[
Index exceeds matrix dimensions.什么错误啊?
a=zeros(8);
l=zeros(8);
u=zeros(8);
for (i=2:8)
a(i,i)=5;
a(i,i-1)=-2;
a(i-1,i)=-2;
l(i,i)=1;
end
a(1,1)=2;
l(1,1)=1;
u(1,1)=a(1,1);
for (i=2:8)
l(i,i-1)=a(i,i-1)/u(i-1,i-1);
u(i,i)=b(i,i)-c(i-1,i)*l(i,i-1);
end
a
l
u
d=[220/27 0 0 0 0 0 0 0];
d=d';
y=(l^(-1))*d;
x=(u^(-1))*y;
x
Index exceeds matrix dimensions.什么错误啊?a=zeros(8);l=zeros(8);u=zeros(8);for (i=2:8)a(i,i)=5;a(i,i-1)=-2;a(i-1,i)=-2;l(i,i)=1;enda(1,1)=2;l(1,1)=1;u(1,1)=a(1,1);for (i=2:8)l(i,i-1)=a(i,i-1)/u(i-1,i-1);u(i,i)=b(i,i)-c(i-1,i)*l(i,i-1);endalud=[
下标越界.除零了吧