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I don't know which buttons I have to click or what key combination to type to calculate a cube root.

2 Answers 2

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The n-th root is calculated when you put a subscript number before the square root sign.

₃√27

To enter subscript numbers with the keyboard hold down Alt while entering the number.

E.g.

  1. Go to Advanced mode
  2. Press Alt while typing 3
  3. Press

and so on

6
  • Also you can open a bug report for add a button of n-th root.
    – 0x2b3bfa0
    Mar 20, 2015 at 12:21
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    X^(1/3) will do the same
    – Jean-Marie
    Mar 20, 2015 at 13:25
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    @Helio That would be a feature request, not a bug report ;) Mar 20, 2015 at 18:40
  • 1
    @CristianMirTienda Were you satisfied with my answer? Then give me a upvote (∧). If I could solve your problem, then it would be nice if you'd mark my answer (✓).
    – A.B.
    Apr 18, 2015 at 14:36
  • I didn't know that! :-)
    – Fabby
    Aug 9, 2015 at 20:35
3

Open Calculator and goto Help>Contents (or simply press F1), You will find help for Powers and Roots:-

enter image description here

Where you will find information that:

n-th roots can be calculated by putting a subscript number before the root sign.
₃√2

The superscripting and subscripting numbers can be put by holing Ctrl and Alt respectively!.

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