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CalculationCenterFunctionsCalculus
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ND
 ND[f, x,  ] gives a numerical approximation to  evaluated at the point  .
ND[f, {x, n},  ] gives the  derivative.
You should realize that with sufficiently pathological examples, the algorithms used for ND can give wrong answers.
See also: D, SolveODE.
Examples
Using InstantCalculators
Here are the InstantCalculators for the ND function. Enter the parameters for your calculation and click Calculate to see the result.
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Entering Commands Directly
You can paste a template for this command via the Text Input button on the ND Function Controller.
Here is a numerical approximation of the derivative of  at x = 2.
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Here is a numerical approximation of the second derivative of  at x = 2.
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