# HP 12C Platinum Instruction Manual

Using the rpn stack to solve problems efficiently.

hp calculators
HP 12C Platinum
Using the RPN stack to solve
problems efficiently
The benefits of understanding RPN stack operations
Understanding the HP12C Platinum RPN stack operation
Viewing and reordering stack-register contents
Using Last-x contents in chain calculations
Practice with solving problems using stack registers

#### Summary of Contents for HP HP 12C Platinum

• Page 1 HP 12C Platinum Using the RPN stack to solve problems efficiently The benefits of understanding RPN stack operations Understanding the HP12C Platinum RPN stack operation Viewing and reordering stack-register contents Using Last-x contents in chain calculations Practice with solving problems using stack registers...
• Page 2 If a second number needs to be typed in right after the first one to be used with it, they must be separated with the \ key. For example, to add 3 and 5 together, you would press 3\5+. hp calculators - 2 - HP 12C Platinum Using the RPN stack to solve problems efficiently - Version 1.0...
• Page 3 Entering a number in the X-register right after \, O, _ or g^ overwrites current X-register contents and does not lift stack contents hp calculators - 3 - HP 12C Platinum Using the RPN stack to solve problems efficiently - Version 1.0...
• Page 4 The dashed arrow indicates the first number entry, while straight-line arrows indicate L-register contents change and use. hp calculators - 4 - HP 12C Platinum Using the RPN stack to solve problems efficiently - Version 1.0...
• Page 5 2×ln(x) while a copy of it held in Y-register is retrieved to compute -1/x later hp calculators - 5 - HP 12C Platinum Using the RPN stack to solve problems efficiently - Version 1.0...
• Page 6 3.4567 \ \ gr ~ g¿ 2 § + ~ y - These examples only begin to scratch the surface of the possibilities that exist when using RPN. hp calculators - 6 - HP 12C Platinum Using the RPN stack to solve problems efficiently - Version 1.0...