ArcGIS Pro 3.1.5: What is the mathematical equation used for Cook’s D in the GWR tool?

[JamalNUMAN]

ArcGIS Pro 3.1.5: What is the mathematical equation used for Cook’s D in the GWR tool?

I couldn’t find any information in the ESRI documentation regarding the mathematical equation used to calculate Cook’s D in the GWR tool.

[DanPatterson]

an alternate view... equation looks the same, 

Cook's distance - Wikipedia

and esri tends not to reprint commonly referenced equations unless there is a variant

[JamalNUMAN]

I wanted  to know the exact Cook’s D formula used in GWR, as it has multiple forms.