I'm curious about the conditions for when a function f(x) is not differentiable
Oct 25, 2011 #1 Manni 42 0 I'm curious about the conditions for when a function f(x) is not differentiable
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Oct 25, 2011 #2 ArcanaNoir 768 4 At a point, or cusp. At a non-removable discontinuity (such as a jump discontinuity). On an asymptote. Probably some other places too. [Edit] Also at a place where the slope is vertical.
At a point, or cusp. At a non-removable discontinuity (such as a jump discontinuity). On an asymptote. Probably some other places too. [Edit] Also at a place where the slope is vertical.
Oct 26, 2011 #3 daveb 537 0 How about any time it fails the definition of the derivative (i.e., the limit in the definition doesn't exist).
How about any time it fails the definition of the derivative (i.e., the limit in the definition doesn't exist).