What constitutes differentiablitly of a function at a point?

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What constitutes differentiablitly of a function at a point? how is it determined analytically at a point?

2007-12-09 03:58:15 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science

Wikipedia is your friend. Check out:
http://en.wikipedia.org/wiki/Derivative

particularly the section titled "Continuity and differentiability"

2007-12-10 18:16:25 · answer #1 · answered by simplicitus 7 · 0⤊ 0⤋