"""
A collection of different constants and prefactors.
A system to calculate with natural units.
"""
from .units import dim, natural_unit, \
    Y,Z,E,P,T,G,M,K,k,d,ct,m,mu,n,p,f,a,z,y, \
    yotta,zetta,exa,peta,tera,giga,mega,kilo, \
    deci,centi,milli,micro,nano,pico,fempto,atto,zepto,yocto, \
    e,eV,c,kb,hbar,c0,hbar0,kb0,J,joule,meter,second,gram,kelvin, \
    barn,u,Bq,Ci,Hz,W, \
    minute,hour,day,week,year

__all__ = ['dim', 'natural_unit', \
    'Y','Z','E','P','T','G','M','K','k','d','ct','m','mu','n','p','f','a','z','y', \
    'yotta','zetta','exa','peta','tera','giga','mega','kilo', \
    'deci','centi','milli','micro','nano','pico','fempto','atto','zepto','yocto', \
    'e','eV','c','kb','hbar','c0','hbar0','kb0','J','joule','meter','second','gram','kelvin', \
    'barn','u','Bq','Ci','Hz','W', \
    'minute','hour','day','week','year']
