Ask Mathematica to sub for a long expression
- To: mathgroup at smc.vnet.net
- Subject: [mg71868] Ask Mathematica to sub for a long expression
- From: aaronfude at gmail.com
- Date: Fri, 1 Dec 2006 06:22:25 -0500 (EST)
Hi, Is it possible to ask Mathematica to replace a long expression, such as Sqrt[a^2+b^2-2*a*b*Cos[theta]] with "c", whenever it encounters that long expression? Thanks! Aaron Fude