Casio FX-82ES Plus Display Scientific Calculations Calculator (Black) Plastic keys, designed and engineered for easy operation.S-V.P.A.M. (Super Visually Perfect Algebraic Method) All the features of the existing V.P.A.M. series plus a new 2-line display and a useful Replay function. All this helps to make mathematics easier to use and easier to understand than ever before. STAT-data editor - Back-step viewing and editing of input data. Multi-replay - Quick and easy recall of previously executed formulas for editing and re-execution. 10-digit mantissa + 2-digit exponential display.