aPriori.derivatives.gradient_x

aPriori.derivatives.gradient_x(F, mesh, filter_size=1, acc=8, reduce_acc=False)

Description

Computes the x-component of the gradient using findiff with specified accuracy. Uses striding (filter_size) to compute derivatives on downsampled grids.

param F:

The field to differentiate.

type F:

Scalar object

param mesh:

The mesh object containing coordinates (X1D).

type mesh:

Mesh object

param filter_size:

The stride used to filter the field (default is 1).

type filter_size:

int, optional

param acc:

The accuracy order for the finite difference scheme (default is 2).

type acc:

int, optional

returns:

grad_x – The x component of the gradient.

rtype:

numpy array