Re: Mathmatica Problem...
- To: mathgroup at smc.vnet.net
- Subject: [mg14365] Re: [mg14320] Mathmatica Problem...
- From: Jurgen Tischer <jtischer at col2.telecom.com.co>
- Date: Thu, 15 Oct 1998 00:29:05 -0400
- Organization: Universidad del Valle
- References: <199810130521.BAA08622@smc.vnet.net.>
- Sender: owner-wri-mathgroup at wolfram.com
Hallo David, I couldn't bring Mathematica to do what you want with Expand (in a sense your formula is expanded, isn't it?). But I found a way playing around to get your result anyway. (I used the AlgebraicManipulation palette.) So use in this order on your formula: TrigToExp, Expand, ExpToTrig. Jurgen Mr D.J. Winstanley wrote: > > Dear mathgroup, > > We have just upgraded to release 3 of mathematica and we have found a > problem with the Expand function as described in the mathematica > manual. Here is the mathematica 3.0 output... > > In[3]:= Expand[Cos[x]^3 Sin[x]^2,Trig->True] > > gives > > 3 2 > Out[3]= Cos[x] Sin[x] > > > this is not the answer given in the manual, which is... > > Cos[x] - Cos[3 x] - Cos[5 x] > ------ -------- -------- > 8 16 16 > > We were led to believe that the new version was compatible with the > previous version. > > Is there a switch to obtain compatibility??? > > Any comments on this would be appreciated. Also who should I send this > to at Wolfram? > > thanks for your help > > David Winstanley > IT Services Manager > Electrical and Electronic Engineering Department Room 1002, E&EE > Building > Imperial College > Exhibition Road > LONDON SW7 2BT > > Phone: 0171-594-6273 or extn. 46273 > Fax: 0171-823-8125 > E-mail: d.j.winstanley at ic.ac.uk
- References:
- Mathmatica Problem...
- From: "Mr D.J. Winstanley" <d.j.winstanley@ic.ac.uk>
- Mathmatica Problem...