Re: trig expansion
- To: mathgroup at smc.vnet.net
- Subject: [mg9323] Re: trig expansion
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Mon, 27 Oct 1997 02:47:39 -0500
- Organization: University of Western Australia
- Sender: owner-wri-mathgroup at wolfram.com
Murray Eisenberg wrote: > I find that really unpleasant to have to do! I expect to be able to > tell Mathematica that T = k/omega and that k is an integer and have > *Mathematica* figure out what the Sin and Cos reduce to. > > It's all a question of expectation vs. reality of the language design, > of course. Is my expectation unreasonable? Let me ask another (related) question. If you enter BesselJ[n+1/2,x] for k an integer what do you expect Mathematica to return? My point is that closed-form formulas exist as a consequence of n being an integer. How far through the system do you expect this functionality to extend? Cheers, Paul ____________________________________________________________________ Paul Abbott Phone: +61-8-9380-2734 Department of Physics Fax: +61-8-9380-1014 The University of Western Australia Nedlands WA 6907 mailto:paul at physics.uwa.edu.au AUSTRALIA http://www.pd.uwa.edu.au/~paul God IS a weakly left-handed dice player ____________________________________________________________________