scipy.misc.central_diff_weights

scipy.misc.central_diff_weights(Np, ndiv=1)

Return weights for an Np-point central derivative.

Assumes equally-spaced function points.

If weights are in the vector w, then derivative is w[0] * f(x-ho*dx) + ... + w[-1] * f(x+h0*dx)

Parameters :

Np : int

Number of points for the central derivative.

ndiv : int, optional

Number of divisions. Default is 1.

Notes

Can be inaccurate for large number of points.