Re: Re: Complex solutions to simple equations

*To*: mathgroup at smc.vnet.net*Subject*: [mg104893] Re: [mg104845] Re: Complex solutions to simple equations*From*: Andrzej Kozlowski <akoz at mimuw.edu.pl>*Date*: Thu, 12 Nov 2009 06:08:20 -0500 (EST)*References*: <hd3mr5$9pv$1@smc.vnet.net> <hd6cg3$pf5$1@smc.vnet.net> <hd8sf9$5vo$1@smc.vnet.net> <hdbh6a$jbv$1@smc.vnet.net> <200911110930.EAA29480@smc.vnet.net>

On 11 Nov 2009, at 18:30, David Bailey wrote: > AES wrote: >> In article <hd8sf9$5vo$1 at smc.vnet.net>, >> dragonman <morrisneedleman at gmail.com> wrote: >> >>> For goodness sake I am a teacher. Feel free to google me. Its >>> Mathematica's representation of solutions I wanted. Feel free to >>> apologise any time. >>> Many thanks to the helpful posters above. >> >> A very nice reply! -- and one I'd hope may have some impact on this >> group. >> >> Out of curiosity, did your personal background or vocabulary >> (pre-Mathematica) include some conceptual understanding of any of the >> terms >> >> local vs global variables >> functional vs procedural programming >> mapping >> >> as they are used in Mathematica? >> > Well I am sorry if I made a mistake here, but we do get a fair few > students trying to get homework questions answered here. The usual > response to such questions is along the lines of my original reply. > > What do you think we should do with such questions, AES - simply reply > regardless? > > David Park has given a solution, so I guess there is nothing more to be > said. > > David Bailey > http://www.dbaileyconsultancy.co.uk > I will like to add that it is a matter of basic courtesy for someone posting a question to insure that: (i) anyone answering it will not have to go into avoidable trouble of re-reformulating it using proper Mathematica syntax, guess missing data etc., etc. (ii) the reasons for asking a question, be it research, commercial work or homework assignments etc. are clearly explained. Nowadays I usually ignore questions that do not satisfy these conditions. I wish more people adopted a similar policy - answering certain kinds of questions may actually be doing more harm than good. In other words, I think in this case David Bailey did exactly the right thing and has no need at all to apologise. Andrzej Kozlowski

**References**:**Re: Complex solutions to simple equations***From:*David Bailey <dave@removedbailey.co.uk>