Module: tide.utils

Core physical constants and low-level coefficient builders.

Constants

• EP0
• MU0

Also exposed internally: - C0 (speed of light in vacuum)

Functions

• setup_pml
• setup_pml_half

prepare_parameters

Builds electromagnetic update coefficients from model parameters: - ca and cb for electric-field update - cq for magnetic-field update

compile_material_coefficients

Compiles coefficient dictionaries for default and Debye-dispersive materials.

Returns keys including: - ca, cb, cq - has_dispersion - debye (when dispersion is enabled)

setup_pml / setup_pml_half

Generates CPML profile tensors used by staggered-grid kernels.

These functions are generally consumed through tide.staggered helpers rather than called directly.