Enter a number in yellow box then choose a root from the pulldown menu:
see all calculators power or exponent
enter NUMBER>> or enter ROOT>>
You can enter any number in the green box. For example, if you want the 77th root enter 77.
History Window:

To use this calculator simply:
  • enter a number in the yellow box
  • choose a root from the pulldown menu or
  • enter the root in the green box. (e.g. enter 44 for the 44th root)
  • press the calculate button
the answer appears in the blue box and the corresponding power appears in the pink box. This calculator has three ways of entering the root. For most purposes, the pulldown menu is best. However, you might want a much higher root (e.g. the 9999th root) in which case enter 9999 in the green root box. If you know the fractional power then you can enter that directly in the pink exponent box. For example, you can can get the square root by entering 0.5 in the pink box. In all cases the exponent appears in the pink box (for example, if you choose the square root then 0.5 appears in the pink box).

A root is written in the form n√x. Square roots are generally just written √x, and cube roots as3√x. You can also write them as a fractional power so that the square root of 10 can be written 100.5 or 101/2 and the cube root as 100.33333 or 101/3.

Russell Kightley Media
PO Box 9150, Deakin, ACT 2600, Australia. Mobile phone Australia 0405 17 64 71
email RKM