#{{{ Imports
import numpy as np
pi = np.pi
#}}}
#{{{ Length units
km = 1e3
m = 1.0
cm = 0.01
mm = 1e-3
um = 1e-6
nm = 1e-9
#}}}
#{{{ Power units
kW = 1e3
W = 1.0
mW = 1e-3
uW = 1e-6
#}}}
#{{{ Frequencies
THz = 1e12
GHz = 1e9
MHz = 1e6
kHz = 1e3
Hz = 1.0
mHz = 1e-3
uHz = 1e-6
#}}}
#{{{ Other
ppm = 1e-6
#}}}
#{{{ Conversion Functions