derivative(func, x0, dx=1.0, n=1, args=(), order=3)

Given a function, use a central difference formula with spacing dx to compute the nth derivative at :None:None:`x0`.

Notes

Decreasing the step size too small can result in round-off error.

Parameters

func : function

Input function.

x0 : float

The point at which the nth derivative is found.

dx : float, optional

Spacing.

n : int, optional

Order of the derivative. Default is 1.

args : tuple, optional

Arguments

order : int, optional

Number of points to use, must be odd.

Find the nth derivative of a function at a point.

Examples

>>> from scipy.misc import derivative
... def f(x):
...     return x**3 + x**2
... derivative(f, 1.0, dx=1e-6)
4.9999999999217337

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

scipy.misc._common.derivative

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GitHub : /scipy/misc/_common.py#75
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