Source code for chempy.symbolic

# -*- coding: utf-8 -*-

from __future__ import absolute_import, division, print_function

from ._util import AttributeDict


[docs]def get_constant_symbols(Symbol=None): if Symbol is None: from sympy import Symbol consts = [ ('Faraday_constant', 'F'), ('Avogadro_constant', 'N_A'), ('vacuum_permittivity', 'epsilon_0'), ('Boltzmann_constant', 'k_B'), ('pi', 'pi'), ('molar_gas_constant', 'R'), ] return AttributeDict({k: Symbol(v) for k, v in consts})