Simplifying Sqrt[a^2*d^2] -> a*d
- To: mathgroup at smc.vnet.net
- Subject: [mg8302] Simplifying Sqrt[a^2*d^2] -> a*d
- From: carlos at mars.Colorado.EDU (Carlos A. Felippa)
- Date: Sun, 24 Aug 1997 04:46:47 -0400
- Sender: owner-wri-mathgroup at wolfram.com
I want Sqrt[a^2*d^2] to be automatically simplified to a*d
wherever it appears in a very complex expression.
In another system I simply declare a and d real nonnegative and let the
program figure out the rest. How do I do that in Mathematica?
The obvious rule expr/.{Sqrt[a^2*d^2]->a*d} does not work.