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clarify beta -> wavenumber

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jan 2017-11-05 14:50:30 -08:00
commit 4bf8627611
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fdfd_tools/waveguide_mode.py
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@ -323,7 +323,7 @@ def solve_waveguide_mode_cylindrical(mode_number: int,
See Numerical Dispersion in Taflove's FDTD book.
This correction term reduces the error in emitted power, but additional
error is introduced into the E_err and H_err terms. This effect becomes
more pronounced as beta increases.
more pronounced as the wavenumber increases.
'''
if wavenumber_correction:
wavenumber -= 2 * numpy.sin(numpy.real(wavenumber / 2)) - numpy.real(wavenumber)