Re: Sqrt[R^2]
- To: mathgroup at smc.vnet.net
- Subject: [mg42750] Re: Sqrt[R^2]
- From: "Bill Bertram" <wkb at ansto.gov.au>
- Date: Thu, 24 Jul 2003 04:10:51 -0400 (EDT)
- Organization: Australian Nuclear Science and Technology Organisation
- References: <bfl2q4$shh$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"Prechtl Josef" <e9426270 at stud4.tuwien.ac.at> wrote in message news:bfl2q4$shh$1 at smc.vnet.net... > How can I instruct Mathematica when simplifying expressions to convert > expressions e.g. Sqrt[R^2] into R? i.e. only to restrict to the case > that the variable R is a positive real? > Simplify[Sqrt[R^2], {R \[Element] Reals, R >= 0}] Bill