TraditionForm Appears to be Inconsistent

*To*: mathgroup at smc.vnet.net*Subject*: [mg99551] TraditionForm Appears to be Inconsistent*From*: uk.org.microserf at googlemail.com*Date*: Thu, 7 May 2009 06:40:13 -0400 (EDT)

Hi The Mathematica 7 documentation says that TraditionalForm[Exp[I \[Theta]] == Cos[\[Theta]] + I Sin[\[Theta]]] will display the expression in traditional form, and indeed it does. However, the following evaluates the expression and then displays True in traditional form: TraditionalForm[Cos[x] == Sin[x + \[Pi]/2]] Why is TraditionalForm behaving differently in these two apparently identical situations, and how can I get Mathematica to display this trigonometric identity in traditional form? Thanks in advance Chris

**Follow-Ups**:**Re: TraditionForm Appears to be Inconsistent***From:*Murray Eisenberg <murray@math.umass.edu>

**Re: TraditionForm Appears to be Inconsistent***From:*Andrzej Kozlowski <akoz@mimuw.edu.pl>