Rook Survey Software

Rook Calculator

Classic RPN meets modern Android.

Available on Google Play · Version 1.3.2

Features

RPN4-Level StackEquation Solver∫ IntegrationMultiple Keypad LayoutsDMS ↔ DecimalUnit ConversionsMaterial 3 Design

Screenshots

HP 35s-style keypad
HP 35s-style keypad
Basic keypad layout
Basic keypad layout
Equation editor
Equation editor
Interactive equation solver
Interactive equation solver
Stored variables
Stored variables
Calculation history
Calculation history
Configurable display format
Configurable display format

What's Next

  • Additional keypad layouts
  • Complex number support
  • Infinite stack option
  • Landscape mode
  • Program support
  • Stack history

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