matlab课后习题及答案以供大家学习及参考
-2.0000 -5.0000 -10.0000 -17.5000 0 -2.2361 -6.7082 -14.0872 0 0 1.0000 3.5000 0 0 0 -0.2236 >> c=chol(a) c =
1 1 1 1 0 1 2 3 0 0 1 3 0 0 0 1 >>
a=[1 1 1 1;1 2 3 4;1 3 6 10;1 4 10 20]; [u s v]=svd(a) u =
-0.0602 -0.5304 0.7873 -0.3087 -0.2012 -0.6403 -0.1632 0.7231 -0.4581 -0.3918 -0.5321 -0.5946 -0.8638 0.3939 0.2654 0.1684 s =
26.3047 0 0 0 0 2.2034 0 0 0 0 0.4538 0 0 0 0 0.0380 v =
-0.0602 -0.5304 0.7873 -0.3087 -0.2012 -0.6403 -0.1632 0.7231 -0.4581 -0.3918 -0.5321 -0.5946 -0.8638 0.3939 0.2654 0.1684 [q,r]=qr(a) q =
-0.5000 0.6708 0.5000 0.2236 -0.5000 0.2236 -0.5000 -0.6708 -0.5000 -0.2236 -0.5000 0.6708 -0.5000 -0.6708 0.5000 -0.2236 r =
-2.0000 -5.0000 -10.0000 -17.5000 0 -2.2361 -6.7082 -14.0872 0 0 1.0000 3.5000 0 0 0 -0.2236 c=chol(a) c =
1 1 1 1 0 1 2 3 0 0 1 3 0 0 0 1