Green Cove Springs is a city in Clay County, Florida, United States. The population was 5,378 at the 2000 census. As of 2010, the population recorded by the U.S. Census Bureau is 6,908. It is the county seat of Clay County. The city is named after the portion of the St. Johns River upon which the city is built.
As n becomes very small, `(1+n)^(1/n)` approaches the value of e. We can obtain reasonable accuracy with a very small value of n. `e~~[(1+n)^(1/n)]_(n=0.000000001)=2.718281827`. The graph of `y=(1+n)^(1/n)` is as follows: e = 2.71828... Graph of `(1+n)^(1/n)`.
Fi = the forecast values of the parameter in question. Oi = the corresponding verifying value (observed or analysed) N = the number of verifying points (grid points or observations) in the verification area. RMSE is a measure of the average error, weighted according to the square of the error. It answers the question, what is the average magnitude of the forecast errors?, but does not indicate the direction of the errors.