Re: expressions list -> equations list

*To*: mathgroup at smc.vnet.net*Subject*: [mg83983] Re: [mg83928] expressions list -> equations list*From*: DrMajorBob <drmajorbob at bigfoot.com>*Date*: Thu, 6 Dec 2007 02:41:41 -0500 (EST)*References*: <19456650.1196870803283.JavaMail.root@m35>*Reply-to*: drmajorbob at bigfoot.com

For example, vars = Array[a, 5] {a[1], a[2], a[3], a[4], a[5]} and then Thread[vars == 0] {a[1] == 0, a[2] == 0, a[3] == 0, a[4] == 0, a[5] == 0} Bobby. On Wed, 05 Dec 2007 06:01:40 -0600, Hauke Reddmann <fc3a501 at uni-hamburg.de> 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? > > -- > Hauke Reddmann <:-EX8 fc3a501 at uni-hamburg.de > Er-a svo gott sem gott kveða > öl alda sonum, því að færra veit > er fleira drekkur síns til geðs gumi. > > -- DrMajorBob at bigfoot.com