Field Calculator Square Root Function

[KelseyBrinkman1]

Hi Everyone,

I'm trying to using this formula in the field calc but keep getting an error.

Sqr(([Field1]^2) - ([Field]^2))

Any tips would be greatly appreciated!

[ChrisDonohue__GISP]

Some questions to help clarify the issue:

1. What error do you get?

2. In the Field Calculator, did you select the VBScript Parser or the Python Parser?

3. Also, which version of ArcGIS are you using?

Chris Donohue, GISP

[KelseyBrinkman1]

Hi Chris,

1) Error 999999 : Error executing function,  Invalid procedure call or argument: "Sqr"

2) VBScript

3) 10.2.2

[NobbirAhmed · Accepted solution]

Make sure ([Field1]^2) - ([Field]^2) value is not negative in any case.

[KelseyBrinkman1]

That did it, thank you!