kcalc 4:3.5.5-0ubuntu2 (amd64 binary) in ubuntu feisty

 KCalc is KDE's scientific calculator.
 .
 It provides:
  * trigonometric functions, logic operations, and statistical calculations
  * easy cut and paste of numbers from/into its display
  * a results-stack which lets you conveniently recall previous results
  * configurable precision, and number of digits after the period
 .
 This package is part of KDE, as a component of the KDE utilities module.
 See the 'kde' and 'kdeutils' packages for more information.