Calculator Help

Operation Button Shortcut key Description
Backspace Backspace delete to left
Clear all   clear calculations screen
Reciprocal x -1   x -1 = 1/x
Exp  E  e xE y = x × 10 y
Answer Ans   previous calculation result
Help   Show this page
Undo Ctrl+Z undo last editing change
Redo Ctrl+Y do again editing change
Left   move cursor to the left
Right   move cursor to the right
Select all   Ctrl+A select expression
Copy   Ctrl+C copy expression
Paste   Ctrl+V paste expression




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