Show by example that || ||, defined by ||A|| = max1i, jn |ai j|, does not

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Show by example that || · ||∞, defined by ||A||∞ = max1≤i, j≤n |ai j|, does not define a matrix norm.
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Numerical Analysis

ISBN: 978-0538733519

9th edition

Authors: Richard L. Burden, J. Douglas Faires

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