?? examp4_15.m
字號:
format long; H=hilb(4); H1=inv(H)
H*H1
norm(H*inv(H)-eye(size(H)))
H2=invhilb(4); norm(H*H2-eye(size(H)))
H=hilb(10); H1=inv(H); norm(H*H1-eye(size(H)))
H2=invhilb(10); norm(H*H2-eye(size(H)))
H=hilb(13); H1=inv(H); norm(H*H1-eye(size(H)))
H2=invhilb(13); norm(H*H2-eye(size(H)))
H=sym(hilb(7)); inv(H)
H=sym(hilb(30)); norm(double(H*inv(H)-eye(size(H))))
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