complex_2_db

complex_2_db(z)

Return the magnitude in dB of a complex number (as \(20\log_{10}(|z|)\)).

The magnitude in dB is defined as \(20\log_{10}(|z|)\) where \(z\) is a complex number.

Parameters:

z (number or array_like) – A complex number or sequence of complex numbers.

Returns:

mag20dB – The magnitude in decibels.

Return type:

ndarray or scalar