Natural Variation. Natural variation includes internal and external variability influences such as the solar Schwabe cycle, oceanic cycles, seasonal influences based on changes caused by the interaction of the various natural oscillations in the climate system.
Answer by solver91311(22529) (Show Source): You can put this solution on YOUR website! It means raised to the power of. So if you see x^2, then it means x raised to the power of 2, which is to say x squared or . If you only see x^, then the writer is incorrectly using the symbol, probably to mean x^2, i.e. .
The expression f(x) means plug a value for x into a formula f ; the expression does not mean multiply f and x! Don't embarrass yourself by pronouncing (or thinking of) f(x) as being f times x. In function notation, the  x  in  f(x)  is called the argument of the function, or just the argument. So if they give you  f(2)  and ask for the argument, the answer is just  2 . Let's proceed to evaluation: You evaluate  f(x)  just as you would evaluate  y 1  . Given f(x) = x2 + 2x â 1, find f(2).