news.gitea.happylizard.me/bin/gems/facets-3.1.0/lib/standard/facets/math/csch.rb

module Math

  # Cosecans hyperbolicus of `x`.
  def self.csch(x)
    1.0 / sinh(x)
  end

  # Cosecans hyperbolicus of `x`.
  def self.cosech(x)
    1.0 / sinh(x)
  end

end