**Filters**
===========

A *filter* is a device or process that removes some unwanted components or features from a signal.

.. py:currentmodule:: symplyphysics.laws.electricity.circuits.filters

**Contents:**

.. toctree::
    :maxdepth: 4


    laws.electricity.circuits.filters.approximation_of_transmission_coefficient_of_low_pass_filter
    laws.electricity.circuits.filters.band_pass_chebyshev_filter_oder_from_distortion_and_frequencies
    laws.electricity.circuits.filters.butterworth_filter_order_from_distortion_and_frequencies
    laws.electricity.circuits.filters.filter_order_from_distortion_and_frequencies
    laws.electricity.circuits.filters.high_pass_chebyshev_filter_order_from_distortion_and_frequencies
    laws.electricity.circuits.filters.low_pass_chebyshev_filter_order_from_distortion_and_frequencies