Re: simple equation substitutions
- To: mathgroup at smc.vnet.net
- Subject: [mg128550] Re: simple equation substitutions
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Fri, 2 Nov 2012 00:46:26 -0400 (EDT)
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Try Reduce instead of Solve.
On Nov 1, 2012, at 3:19 AM, Neal Becker <ndbecker2 at gmail.com> wrote:
> {y == x + 2, x == 7}
>
> Solve[%, y]
>
> -> {}
>
> What I expected to happen is have x->7 applied to y == x+2.
>
> My real plan is to develop a list of (a lot more complicated) expressions that will have repeated substitutions applied.
>
> Why didn't the above work and/or what should I do instead?
---
Murray Eisenberg
murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2838 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305
- References:
- [newb] simple equation substitutions
- From: Neal Becker <ndbecker2@gmail.com>
- [newb] simple equation substitutions