Re: expressions list -> equations list
- To: mathgroup at smc.vnet.net
- Subject: [mg83973] Re: expressions list -> equations list
- From: dh <dh at metrohm.ch>
- Date: Thu, 6 Dec 2007 02:36:23 -0500 (EST)
- References: <fj6404$em9$1@smc.vnet.net>
Hi Hauke,
if I understand it right, you want to get {a==,b==0,c==0} from {a,b,c}.
For this there is Thread and MapThread. For your case:
Thread[{a,b,c}==0]
hope this helps, Daniel
Hauke Reddmann wrote:
> 1st of all THX to all who answered my last question. Just one other before
> I lend a Mathematica manual from the public lib and pester you no more :-)
>
> So. Now that I have a tensor it must vanish identically. I Flatten[] it first
> and then I have a list of equations...oh, stop, I haven't. REDUCE (if I may
> mention the name of a competition :-) could take a Solve[] now because it
> automatically assumes a "=0" as default but Mathematica is anally-retentive
> (a good thing :-) and I somehow must turn {a,b,c} into {a=0,b=0,c=0}.
> Convert to string, global change "," -> "=0," and "}" -> "=0}", reconvert
> to list? Is that possible? Or is there a less LISP-hack-style solution?
>