4.Mathematical Functions:

Abs	Covar_pop	Max	Sqrt
	Acos	Covar_samp	Median	StdDev
	Asin	Count	Min	Sum
	Atan	Cume_Dist	Mod	Tan
	Atan2	Dense_Rank	Power	Tanh
	Avg	Exp	Rank	Trunc (numbers)
	Bin_To_Num	Extract	Remainder	Trunc (dates)
	BitAnd	Floor	Round (numbers)	Var_pop
	Ceil	Greatest	Round (dates)	Var_samp
	Corr	Least	Sign	Variance
	Cos	Ln	Sin
	Cosh	Log	Sinh