|  | @@ -4,8 +4,12 @@ import typing
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				|  |  |  import numpy
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				|  |  |  import scipy.io.wavfile
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				|  |  | +import sympy
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				|  |  |  from matplotlib import pyplot  # pylint: disable=unused-import; frequently used in shell
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				|  |  |  
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				|  |  | +# https://docs.sympy.org/latest/modules/interactive.html#module-sympy.interactive.printing
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				|  |  | +sympy.init_printing(pretty_print=True)
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				|  |  | +
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				|  |  |  
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				|  |  |  def numpy_array_from_file(
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				|  |  |      path: typing.Union[str, pathlib.Path], dtype
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