e1e0c041cf
The initial port [0] incorrectly use `sqrt` where `sqr` was used in the
original code. This mistake was made in two places but the second
causes a significant change in behavior, so this has been left as is
noting the difference in a comment.
Resolve the following issues:
- Use square instead of sqrt when calculating the peak value,
besides following the original implementation it avoids the result
being NAN when "Fetch" is below 30.
- Pass in `sqrt(m_omega)` matching the `omega` argument to
`alpha_beta_spectrum` as well as following the upstream code.
In most cases the user visible changes are subtle.
Ref !137607
Co-authored-by: Nicolas Paris <nicolas.paris490@gmail.com>
[0]: 6ce709dceb
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