findiff 0.9.1

A Python package for finite difference derivatives in any number of dimensions.

A Python package for finite difference derivatives in any number of dimensions.

Features:

• Differentiate arrays of any number of dimensions along any axis

• Partial derivatives of any desired order

• Accuracy order can be specified

• Accurate treatment of grid boundary

• Includes standard operators from vector calculus like gradient, divergence and curl

• Can handle uniform and non-uniform grids

• Can handle arbitrary linear combinations of derivatives with constant and variable coefficients

• Fully vectorized for speed

• Calculate raw finite difference coefficients for any order and accuracy for uniform and non-uniform grids

• _New in version 0.7:_ Generate matrix representations of arbitrary linear differential operators

• _New in version 0.8:_ Solve partial differential equations with Dirichlet or Neumann boundary conditions

• _New in version 0.9:_ Generate differential operators for generic stencils