The Three Classes of Number FunctionsNotationSingle-Value FunctionsAddition (+), Subtraction (-), Multiplication (*), and Division (/)NULLNVL: NULL-Value SubstitutionABS: Absolute ValueCEILFLOORMODPOWERSQRT: Square RootEXP, LN, and LOGROUND and TRUNCSIGNSIN, SINH, COS, COSH, TAN, TANH, ACOS, ATAN, ATAN2, and ASINAggregate FunctionsNULLs in Group-Value FunctionsExamples of Single- and Group-Value FunctionsAVG, COUNT, MAX, MIN, and SUMCombining Group-Value and Single-Value FunctionsSTDDEV and VARIANCEDISTINCT in Group FunctionsList FunctionsFinding Rows with MAX or MINPrecedence and ParenthesesReview