i dZddlmZddlmZmZmZddlmZm Z m Z m Z m Z m Z mZmZmZmZddlmZmZddlmZeee efe e eee ee fZeeeZeeeefed Zy ) z Naturalunit system. The natural system comes from "setting c = 1, hbar = 1". From the computer point of view it means that we use velocity and action instead of length and time. Moreover instead of mass we use energy. )DimensionSystem)ceVhbar) actionenergyforce frequencylengthmassmomentumpowertimevelocity)PREFIXES prefix_unit) UnitSystem) base_dims derived_dimszNatural system) base_unitsunitsnameN)__doc__sympy.physics.unitsrsympy.physics.units.definitionsrrr5sympy.physics.units.definitions.dimension_definitionsrrr r r r r rrrsympy.physics.units.prefixesrrsympy.physics.units.unitsystemr _natural_dimrnaturalx/Volumes/fast/ai/experiments/voice-extract-mac/.venv/lib/python3.12/site-packages/sympy/physics/units/systems/natural.pyr$sy077?5vx($huiH B! r1 UAQ Rr"