General usage is straight forward and similar to the way most simple scientific calculators operate, but take note of the following special KCalc features:
Each time you button or press your keyboard's Enter or = keys, the display result is written to KCalc's result stack. You can navigate through the result stack with your keyboard's Ctrl+Z and Ctrl+Shift+Z keys.
mouse button click on theThe percent function works somewhat differently to that on most calculators. However, once understood, its enhanced functionality proves quite useful. See the section about the percent function for further details.
Pressing Ctrl+C will place the displayed number on to the clipboard.
Pressing Ctrl+V will paste the clipboard content into the display if the content of the clipboard is a valid floating point number.
It is still possible to copy/paste by clicking on KCalc's display, but this may disappear in future versions.
When you start KCalc for the first time, the calculator will only display buttons for basic arithmetic computations.
Under the menu entry it is possible to open extra buttons for KCalc: it is for example possible to choose Statistical or Trigonometric buttons.
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