Difference between revisions of "Critical point"
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| − | A '''critical point''' of a function <math>\displaystyle f(x)</math> is a point <math>\displaystyle (k,f(k))</math> for which <math>\displaystyle f'(k)</math> is not defined | + | A '''critical point''' of a [[function]] <math>\displaystyle f(x)</math> is a point <math>\displaystyle (k,f(k))</math> for which the [[derivative]] <math>\displaystyle f'(k)</math> is not defined or is equal to [[zero (constant)| zero]]. |
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===See also=== | ===See also=== | ||
* [[Calculus]] | * [[Calculus]] | ||
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Revision as of 20:48, 2 September 2006
A critical point of a function 
is a point 
for which the derivative 
is not defined or is equal to zero.
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