HP 12C Platinum CalculatorAmazon.comHP has taken the industry-standard, world-renowned HP 12C and improved it. The HP 12C Platinum now includes both RPN and algebraic entry and more power to perform industry-specific calculations with four times more memory.Free Online Training Make the most of your HP calculator with free online training. First, visit the HP Web site for Learning Modules, which are online self-paced training lessons that you control. Also, register for Virtual Courses that are conducted by experienced instructors who can answer your questions. Still the ideal choice for heavy-duty calculations in real estate, banking, and finance, the HP 12C Platinum has over 130 built-in functions. Statistical features include cumulative analysis, standard deviation, mean, weighted mean, linear regression, forecasting, and correlation coefficient, to name a few. Business and finance features include TVM (loans, savings, and leasing), amortization, bond price and yield to maturity, and registered-based cash flow analysis with memory for 30 cash flows, and much more. Programming is simple, with storage for up to 400 recorded keystrokes which can then be executed with the push of a button.What's in the BoxCalculator, owner's manual, batteries, padded carrying case, warranty card (one year)From the ManufacturerThis easily transportable and compact (5 by 3.1 by 0.6 inches) calculator will breeze through your heavy-duty real estate, banking, and finance calculations. Its claims to fame include over 130 built-in functions, RPN and algebraic entry, and keystroke programming for 400 steps. Perform industry-specific calculations with four times more memory than its predecessor. Determine everything from loan and mortgage payments to interest rate conversions, bond prices, and yields. Optimize data entry and calculation performance with quick and efficient RPN keystrokes. Execute keystroke programs with a simple push of a button. Protect and pad the calculator in the included carrying case, and feel assured by HP's 12c reliability and reputation. One-year warranty.