get_grid(self, domain=None, divs=None, **kw): 

Provides the Colbert-Miller DVR grid for the [-inf, inf] range

• domain: Any

• divs: Any

• flavor: Any

• kw: Any

• :returns: _

get_kinetic_energy(self, grid=None, mass=None, hb=1, **kwargs): 

LLM Docstring

Build the Colbert-Miller kinetic-energy matrix for the free-particle (Cartesian, [-inf, inf]) DVR grid, with diagonal elements coeff * pi^2/3 and off-diagonal band elements coeff * (-1)^(j-i) * 2/(j-i)^2.

• grid: np.ndarray

  the DVR grid points

• mass: float

  the particle mass

• hb: float

  the value of hbar to use

• kwargs: dict

  extra options, unused

• :returns: np.ndarray

  the kinetic-energy matrix

real_momentum(self, grid=None, mass=None, hb=1, **kwargs): 

Provides the real part of the momentum for the [-inf, inf] range

• grid: Any

• hb: Any

• kw: Any

• :returns: _