In your case, you have to use the Snow Leopard DVD you purchased to upgrade your Mac or the Mac OS X DVD that came with your Mac. So you what you see? Share the LOVE! Emulators » Super Nintendo Entertainment System (SNES) » Mac OS X. Joe & Mac is a Super Nintendo emulator game that you can download to your computer or play online within your browser. Play Joe & Mac game that is available in the United States of America (USA) version only on this website. Deviation, mean, weighted mean * Linear regression * Forecasting, correlation coefficient * Total, ∑x, ∑x2, ∑y, ∑y2, ∑xy * +, -, x,%, ÷, 1/x, ±, LN, ex, n! HP 12C User Guide is available from the link below: Features: * Time value of money (loans, savings, and leasing) * Amortization * Bond price and yield to maturity * Cash flow analysis NPV, IRR * Memory for up to 20 cash flows * SL, DB, SOYD depreciation methods * Percentage change, percentage of total * Cumulative statistical analysis * Std. It fully implements the functionality and financial formulas of HP 12C. 12C financial calculator emulates HP 12C financial calculator.