Python calculation in field calculator

Question

Hello,

I'm trying to do some simple calculation within the field calculator using Python instead of VB and keep on getting error messages.

Pre-logic script code:def rad (value):
  return math.sqrt(value / math.pi( ) )

Expression:
AEQU_RAD= rad (!area!)

I get the error message, that "float object is not callable". Field type is double.

KathrinSchulte-Braucks · Answer

Thanks for processing this issue!

ChrisFox3 · Answer

Hi Kathrin,

Thank you for pointing out this issue. I logged a bug for math.pi and math.e constants being listed as functions in the field calculator, NIM074191.

KathrinSchulte-Braucks · Answer

Thank you so much, now it works. I just clicked on the proposed function in the box on the right. The implemented syntax in the box was math.pi(), so I assumed this is the correct syntax.