Re: Examples using Trig option

*To*: mathgroup at smc.vnet.net*Subject*: [mg35407] Re: Examples using Trig option*From*: "Dana DeLouis" <delouis at bellsouth.net>*Date*: Thu, 11 Jul 2002 05:24:15 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

I am new myself, and trying to learn. I went to http://search.wolfram.com and searched "Trig->True" under "The Document Center." There was only 1 result. It pointed to a Mathematica 3 example. Denominator[Cos[3*x]/Sin[2*x]] 1 Denominator[Cos[3*x]/Sin[2*x], Trig -> True] Sin[2*x] Apparently, this can make a big difference on what one is expecting for an answer. I "think" it is because Mathematica is not using "Denominator" directly, but Times & Power instead. -- Dana Windows XP & Mathematica 4.1 = = = = = = = = = = = = = = = = = "Ersek, Ted R" <ErsekTR at navair.navy.mil> wrote in message news:afugd0$rr4$1 at smc.vnet.net... > 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