HP 12C#ABA HP 12c Financial Calculator Quick Start Guide - Page 14

Keys used to rearrange the stack: • Pressing the P key exchanges the numbers in the X-and Y-registers (pages 74 and 172). • Pressing the O key performs a roll down of the stack, where each number in the registers is copied into the register below, and the number formerly in the X-register is copied into the T-register (page 172). • Pressing Ur recalls the number displayed before the previous operation back into the displayed X-register. (pages 74 and 176). Keys and Functions Table 1-3 lists some of the keys used for basic operations, mathematical calculations, and financial problems. Use this table for quick reference. The pages of the HP 12c Financial Calculator User's Guide are included for reference. For a complete list of functions, including the keys used for statistics and programming, refer to the user's guide. Table 1-3 Keys and Functions Key(s) R Enter ;* ZX Description and Page Number in the User's Guide Enters a copy of number in displayed X-register into Y-register. Used to separate numbers in RPN (pages 19, 171). Arithmetic operators (pages 19, 20-22). 10 Getting Started