old_contents: """
  This module provides utility functions for various math conversions.
  """
  
  import math
  
  
  def lin2db(lin):
      """
      Convert a linear value to the decibel (dB) scale.
  
      :param lin: linear value
      :rtype: decibel value
      """
      if lin > 1e-5:
          return 20.0 * math.log10(lin)
      else:
          return -100.0
  
  
  def db2lin(db):
      """
      Convert a decibel (dB) value to the linear scale.
  
      :param db: decibel value
      :rtype: linear value
      """
      return math.pow(10, db / 20.0)
  
new_contents: """
  This module provides utility functions for various math conversions.
  """
  
  import math
  
  
  def lin2db(linval):
      """
      Convert a linear value to the decibel (dB) scale.
  
      :param linval: linear value
      :rtype: decibel value
      """
      if linval > 1e-5:
          return 20.0 * math.log10(linval)
      else:
          return -100.0
  
  
  def db2lin(dbval):
      """
      Convert a decibel (dB) value to the linear scale.
  
      :param dbval: decibel value
      :rtype: linear value
      """
      return math.pow(10, dbval / 20.0)
  
subject: Fix variable naming convention for conversion module