Square root function in VBA, Excel

问题

What is the square root function in VBA excel? I tried SQRT() and Root() but none of them are working, my Excel version in 2013.

回答1:

Use the oddly named

VBA.Sqr(n)

where n is your number for which you want the square root computed. The VBA. prefix is optional, but it helps descriminate between VBA and any other library you might have referenced.

回答2:

Nth root can be obtained with VBA with:

Option Explicit

Function NthRoot(dblNumber As Double, lngRoot As Long) As Double
    NthRoot = dblNumber ^ (1 / lngRoot)
End Function

So for square root:

? NthRoot(64, 2)
 8 
? NthRoot(64.33333, 2)
 8.02080606921773 

回答3:

You can use the ^ operator to obtain square roots. Just raise the number you started with to the power of 0.5:

81^0.5 will give you 9 and 256^0.5 will give you 16

来源：https://stackoverflow.com/questions/43679570/square-root-function-in-vba-excel