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matrix norm changed by vector norm

edited Jul 16, 2012 at 21:30

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Ease of calculation of norm

I have SPD matrix A and two vectors z and b.

Is there exist a norm where I can calculate $||A^{1/2}b-z||$ without having to calculate $A^{1/2}b$ explicitly ?

na.numerical-analysis linear-algebra numerical-linear-algebra

asked Jul 16, 2012 at 21:22

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