Re: Examples using Trig option
- To: mathgroup at smc.vnet.net
- Subject: [mg35257] Re: Examples using Trig option
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 5 Jul 2002 02:18:58 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <afugd0$rr4$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
In[]:=Expand[Sin[x]^2*Cos[2x], Trig -> #] & /@ {True, False}
Out[]={Cos[x]^2*Sin[x]^2 - Sin[x]^4, Cos[2*x]*Sin[x]^2}
??
Regards
Jens
"Ersek, Ted R" wrote:
>
> Hello mathgroup,
>
> The usage message for Trig says:
>
> Trig is an option for algebraic manipulation functions which specifies
> whether trigonometric functions should be treated as rational functions of
> exponentials.
> ---------
>
> The built-in functions that have the Trig option are:
> Apart, ApartSquareFree, Cancel, Coefficient, CoefficientList, Collect,
> Denominator, Expand, ExpandAll, ExpandDenominator, ExpandNumerator,
> Exponent, Factor, FactorList, FactorSquareFree, FactorSquareFreeList,
> FactorTerms, FactorTermsList, FullSimplify, Numerator, PolynomialGCD,
> PolynomialLCM, PolynomialMod, Resultant, Simplify, Together.
>
> After searching all available documentation I can't find a single example of
> where
> f[expr, Trig->True] would give a different result than
> f[expr, Trig->False], and I can't come up with one on my own. Can you give
> some examples. An example for each function above is not necessary.
>
> ---------
> Thanks,
> Ted Ersek
> Get Mathematica tips, tricks from
> http://www.verbeia.com/mathematica/tips/Tricks.html