FVSCHEDULE function
    FVSCHEDULE(Principal, Schedule) FVSCHEDULE(Principal; Schedule)
  
  Principal
        Number or { Number }
      
      The initial value of the lump sum.
Schedule
        { Number }
      
      An array containing a schedule of interest rates which apply each period.
Returns
        Number or { Number }
      
      The future value of a lump sum, with changing future interest rates.
Returns the future value of a lump sum, with changing future interest rates.
Example
  Partly derived from the OpenOffice.org documentation, licensed
  under the Apache License 2.0.