map(function,sequence[,sequence,...])->list 　　Returnalistoftheresultsofapplyingthefunctiontotheitemsof 　　theargumentsequence(s).Ifmorethanonesequenceisgiven,the 　　functioniscalledwithanargumentlistconsistingofthecorresponding 　　itemofeachsequence,substitutingNoneformissingvalueswhennotall 　　sequenceshavethesamelength.IfthefunctionisNone,returnalistof 　　theitemsofthesequence(oralistoftuplesifmorethanonesequence). 　　reduce(...) 　　reduce(function,sequence[,initial])->value 　　Applyafunctionoftwoargumentscumulativelytotheitemsofasequence, 　　fromlefttoright,soastoreducethesequencetoasinglevalue. 　　Forexample,reduce(lambdax,y:x+y,[1,2,3,4,5])calculates 　　((((1+2)+3)+4)+5).Ifinitialispresent,itisplacedbeforetheitems 　　ofthesequenceinthecalculation,andservesasadefaultwhenthe 　　sequenceisempty.