Current File : //proc/thread-self/root/lib/python3/dist-packages/sympy/physics/units/systems/mks.py
"""
MKS unit system.
MKS stands for "meter, kilogram, second".
"""
from sympy.physics.units import UnitSystem, DimensionSystem
from sympy.physics.units.definitions import G, Hz, J, N, Pa, W, c, g, kg, m, s
from sympy.physics.units.definitions.dimension_definitions import (
acceleration, action, energy, force, frequency, momentum,
power, pressure, velocity, length, mass, time)
from sympy.physics.units.prefixes import PREFIXES, prefix_unit
from sympy.physics.units.systems.length_weight_time import dimsys_length_weight_time
dims = (velocity, acceleration, momentum, force, energy, power, pressure,
frequency, action)
units = [m, g, s, J, N, W, Pa, Hz]
all_units = []
# Prefixes of units like g, J, N etc get added using `prefix_unit`
# in the for loop, but the actual units have to be added manually.
all_units.extend([g, J, N, W, Pa, Hz])
for u in units:
all_units.extend(prefix_unit(u, PREFIXES))
all_units.extend([G, c])
# unit system
MKS = UnitSystem(base_units=(m, kg, s), units=all_units, name="MKS", dimension_system=dimsys_length_weight_time)
__all__ = [
'force', 'DimensionSystem', 'energy', 'Pa', 'MKS',
'dimsys_length_weight_time', 'Hz', 'power', 's', 'UnitSystem', 'units',
'mass', 'momentum', 'acceleration', 'G', 'J', 'N', 'pressure', 'W',
'all_units', 'c', 'kg', 'g', 'dims', 'prefix_unit', 'm', 'PREFIXES',
'length', 'frequency', 'u', 'time', 'action', 'velocity',
]
Mini Shell