Re: Question : How to force ( Exp[I x]/2+Exp[-I x]/2=cos(x)
- To: mathgroup at smc.vnet.net
- Subject: [mg3429] Re: [mg3402] Question : How to force ( Exp[I x]/2+Exp[-I x]/2=cos(x)
- From: Allan Hayes <hay at haystack.demon.co.uk>
- Date: Wed, 6 Mar 1996 01:48:02 -0500
- Sender: owner-wri-mathgroup at wolfram.com
yjtsai at leland.Stanford.EDU (Yeou-Jyh Tsai) [mg3402] Question : How to force ( Exp[I x]/2+Exp[-I x]/2=cos(x) ) ? Tsai: <<Algebra`Trigonometry` (Exp[I x]/2 +Exp[-I x]/2)//ComplexToTrig//Simplify Cos[x] Allan Hayes hay at haystack.demon.co.uk ==== [MESSAGE SEPARATOR] ====