Simple Concept I can't figure out! Making rules?
- To: mathgroup at smc.vnet.net
- Subject: [mg38046] Simple Concept I can't figure out! Making rules?
- From: snarten at runbox.com (Stan)
- Date: Thu, 28 Nov 2002 14:07:35 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Even though it's frowned upon by the engineering college, i use
mathematica a lot of the stuff that would take pages of code in
another system. I have most basic functions and operations down, but I am
lacking one basic thing I need to do to be able to program more
problems successfully:
here is my problem:
Lets say you solve an equation using "Solve"
Solve[2x - 1 == 0, x] // N
{{x -> 0.5}}
How would I then use the result of "Solve" (0.5) and assign it to a
new variable, like "answer" for further calculations?
I think it has something to do with /. and -> rules of some sort, but
I can't get this simple concept to work!
Thanks for the help.
-Stan