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 InstantCalculatorsHere are the InstantCalculators for the ND function. Enter the parameters for your calculation and click Calculate to see the result.
Out[1]= |  |
Out[2]= |  |
Entering Commands DirectlyYou 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.
Out[3]= |  |
Here is a numerical approximation of the second derivative of  at x = 2.
Out[4]= |  |
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