Cos[a x - b] displayed as Cos[b - a x]

*To*: mathgroup at smc.vnet.net*Subject*: [mg90834] Cos[a x - b] displayed as Cos[b - a x]*From*: "HO JEE HOU" <Jeehou.Ho at nottingham.edu.my>*Date*: Fri, 25 Jul 2008 06:18:52 -0400 (EDT)

Dear all, I have an expression which I wish to put it in the form of Cos[a x - b]. However when I input it to Mathematica, it automatically converted to Cos[b - a x]. Similarly, for Sin[a x - b] it would become -Sin[b - ax]. I understand that both are equivalent, but I just wish to have the form of Cos[a x - b]. Is there any way to do this? Thank you very much. Best regards, Ho

**Follow-Ups**:**Re: Cos[a x - b] displayed as Cos[b - a x]***From:*"Thomas Dowling" <thomasgdowling@gmail.com>