=SQRT(81)
=SQRT(A1) best
=A1^(1/2) so cube root is =A1^(1/3)
=POWER(A1,0.5) worst (to many keystrokes)
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
www.stfx.ca/people/bliengme
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how do i calculate sqaure roots in excel