Mathematicsisabeautifulsubject.Itssymbols,notationandabstractstructurespermitustodefine,manipulateandresolveextremelycomplexproblems.Thesymbolsbythemselves,however,aremeaningless–theyarenothingmorethanacalligraphicrepresentationofamentalidea.Ifonedoesnotunderstandsuchsymbols,thenthee