PrecisionFiniteDifference#
- class cuqi.operator.PrecisionFiniteDifference(num_nodes, bc_type='periodic', order=1)#
Precision operator constructed with a finite difference operator.
Attributes:#
- num_nodes: int or tuple
For a 1D operator, num_nodes is a one dimensional tuple or an integer representing the number of discretization nodes in a 1D grid. For a 2D operator, num_nodes is a two dimensional tuple of integers representing the number of discretization nodes in the 2D grid in the x axis and the y axis, respectively.
- bc_type: str
The boundary condition type for the finite difference operator.
- physical_dim: int
Either 1 or 2 for 1D and 2D operators, respectively.
- order: int
- The order of the finite difference operator.Order 0: Identity operator.Order 1: First order finite difference operator. 1D precision has a banded diagonal structure with [-1, 2, -1].Order 2: Second order finite difference operator. 1D precision has a banded diagonal structure with [1, -4, 6, -4, 1].
- __init__(num_nodes, bc_type='periodic', order=1)#
Methods
__init__(num_nodes[, bc_type, order])Attributes