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Re: Cos[a x - b] displayed as Cos[b - a x]
*To*: mathgroup at smc.vnet.net
*Subject*: [mg90863] Re: [mg90834] Cos[a x - b] displayed as Cos[b - a x]
*From*: "Thomas Dowling" <thomasgdowling at gmail.com>
*Date*: Sat, 26 Jul 2008 04:24:22 -0400 (EDT)
*References*: <200807251018.GAA12246@smc.vnet.net>
Hello,
It may be worthwhile checking out HoldForm.
exp = HoldForm[Cos[a x - b]]
Out[19] = Cos[a x - b]
Evaluate[exp] // ReleaseHold
Out[20] = Cos[b - a x]
On Fri, Jul 25, 2008 at 11:18 AM, HO JEE HOU <Jeehou.Ho at nottingham.edu.my>
wrote:
> 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
>
>
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