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===Generalizations===
These definitions can be extended to the case when <math>v</math> and <math>v_{\text{approx}}</math> are [[Euclidean vector|''n''-
</ref>
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Line 31:
===Generalizations===
These definitions can be extended to the case when <math>v</math> and <math>v_{\text{approx}}</math> are [[Euclidean vector|''n''-
</ref>
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