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regular smooth curve - Penn Math

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Consider the six real-valued functions defined for s � I ,<br />

and obtained by taking the various inner products of the<br />

vectors T(s) , N(s) , B(s) :<br />

<br />

.<br />

When s = s0 , these six quantities start off with the values<br />

1 1 1<br />

0 0 0<br />

24

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