When computing NDCG with the second formulation of DCG, the base of the log does not matter, but the base of the log does affect the value of NDCG for the first formulation. Clearly, the base of the log affects the value of DCG in both formulations.
407 and 321. Orlando, FL utilizes an area code overlay in which area codes 321 and 407 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary. In addition to Orlando, FL area code information read more about area codes 321 and 407 details and Florida area codes. Orlando, FL is located in Orange County and observes the Eastern Time Zone. View our Times by Area Code tool.
List of area codes. 1  239: Southwest coast: all of Lee County, Collier County, mainland Monroe County excluding Florida Keys; includes Cape Coral, Fort Myers, Naples, Everglades City. 2  305: All of Miami-Dade County and the Florida Keys of Monroe County: Miami, Homestead, Coral Gables, Key West; overlaid by 786 for all of Miami-Dade.