Which equation is used for the IDW interpolation?

I???m wondering if the equation below is the one used in the ArcGIS for the interpolation by IDW. I couldn???t find it in the help,

Thank you for the help,

Best

Jamal

[ATTACH=CONFIG]15143[/ATTACH]

I???m wondering if the equation below is the one used in the ArcGIS for the interpolation by IDW. I couldn???t find it in the help,

Thank you for the help,

Best

Jamal

[ATTACH=CONFIG]15143[/ATTACH]

Spatial Analyst and Geostatistical Analyst use the same equation for IDW, please see page 114 in http://dusk.geo.orst.edu/gis/geostat_analyst.pdf

If you have anymore questions regarding this equation then please email me at slynch@esri.com

Steve