package com.bytezone.diskbrowser.visicalc;

// -----------------------------------------------------------------------------------//
class Ln extends ValueFunction
// -----------------------------------------------------------------------------------//
{
  // ---------------------------------------------------------------------------------//
  Ln (Cell cell, String text)
  // ---------------------------------------------------------------------------------//
  {
    super (cell, text);
    assert text.startsWith ("@LN(") : text;
  }

  // ---------------------------------------------------------------------------------//
  @Override
  public double calculateValue ()
  // ---------------------------------------------------------------------------------//
  {
    return Math.log (source.getDouble ());
  }
}