Spatial Analyst expression for NoData when Adding two Layers together

[JeffBolton]

Does anyone know how to write the Map Calc expression (in SA v10) when you have a layer with NoData and are adding it to another layer (e.g. DEM) (without reclassifying the layer with the NoData first)?

Thanks
jbolton@frwa.org

[DanPatterson_Retired]

you can substitute your case for the one shown here
http://forums.arcgis.com/threads/3062-multiply-two-rasters-but-ignore-no-data-values-from-first-rast...