Re: Simple Concept I can't figure out! Making rules?
- To: mathgroup at smc.vnet.net
- Subject: [mg38132] Re: [mg38046] Simple Concept I can't figure out! Making rules?
- From: Vladimir Bondarenko <vvb at mail.strace.net>
- Date: Tue, 3 Dec 2002 04:34:16 -0500 (EST)
- In-reply-to: <200211281907.OAA23937@smc.vnet.net>
- References: <200211281907.OAA23937@smc.vnet.net>
- Reply-to: Vladimir Bondarenko <vvb at mail.strace.net>
- Sender: owner-wri-mathgroup at wolfram.com
snarten at runbox.com (Stan) wrote on Thursday, November 28, 2002, 3:07:35 PM : S> here is my problem: S> Lets say you solve an equation using "Solve" S> Solve[2x - 1 == 0, x] // N {{x ->> 0.5}} S> How would I then use the result of "Solve" (0.5) and assign it to a S> new variable, like "answer" for further calculations? Just use [[...]] (or its prefix equivalent, Part) to select a part of the output you want to use for your further calculations. In[1] := answer = (Solve[2x - 1 == 0, x] // N)[[1, 1, 2]]; In[2] := answer^2 Out[2] = 0.25 Best wishes, Vladimir Bondarenko Mathematical and Production Director Symbolic Testing Group http://www.CAS-testing.org/ GEMM Project (95% ready) Email: vvb at mail.strace.net Voice: (380)-652-447325 Mon-Fri 6 a.m. - 3 p.m. GMT ICQ : 173050619 Mail : 76 Zalesskaya Str, Simferopol, Crimea, Ukraine