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Conference rusure::math

Title:Mathematics at DEC
Moderator:RUSURE::EDP
Created:Mon Feb 03 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2083
Total number of notes:14613

563.0. "<><><> Palindromic words, phrases, sentenses <><><>" by THEBUS::KOSTAS (Wisdom is the child of experience.) Mon Aug 11 1986 17:00

    Hello,
    
         I may be reproducing the question in this notes file, but I
      can not remember where I have seen a similar problem. I have icluded
      it in here because I think is interesting and may be related to
      notes # 178, and 525.
    

      The problem is this:
    
      Do there exist words, phrases, or sentenses such that they
      are the same when read backward or forward (i.e. a palindrome)
      in the English language or any other language.
      
      Here are some words that are palindromes :
    
          dad,  mom,  did    (3 characters)
          noon,  level       (4 characters)
    
      I know that some names may be easy to constract but we are not
      interested in these. Also will be interesting to get the DECspell
      dictionary and run a simple program to find all words which are
      palindromes.
    
      I have yet to find a sentence in English, but I know one such
      sentence in Greek.

    
      Enjoy,
    
      Kostas G.

    
    
T.RTitleUserPersonal
Name
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563.1BEING::POSTPISCHILAlways mount a scratch monkey.Mon Aug 11 1986 17:106
    This topic is more appropriate for the UCOUNT::JOYOFLEX conference (use
    SELECT or keypad 7 to select the conference).  See note 193 (and
    possibly others) in that conference.
    
    
    				-- edp
563.2thanks for the ^THEBUS::KOSTASWisdom is the child of experience.Mon Aug 11 1986 19:554
    re. .1
    
    Thanks for the pointer. I will look up note 193 in UCOUNT::JOYOFLEX.
    -kgg
563.3A man, a plan, a canal - PanamaTAV02::NITSANNitsan Duvdevani, Digital IsraelTue Aug 12 1986 10:221
(without looking in the previous-mentioned conference)
563.4could someone get all of 193 from UCOUNT::JOYOFLEXTHEBUS::KOSTASWisdom is the child of experience.Tue Aug 12 1986 12:579
    re. .1 
    
    someone should copy note 193 from UCOUNT::JOYOFLEX to here. Because
    I think the replies are interesting. ( I was going to do that but
    I do not know as easy way).
    
    /kgg
    
    
563.5BEING::POSTPISCHILAlways mount a scratch monkey.Tue Aug 12 1986 13:216
    Re .4:
    
    This conference is for math topics.
    
    
    				-- edp
563.6re. .5 OoTHEBUS::KOSTASWisdom is the child of experience.Tue Aug 12 1986 13:4614
    re. .5
    
    Oh, since when palindromes do not qualify as a math topic? 
    Are you going to stop non math topics? 
    What's next? Computer algorithms? possibly Logic? or even Graph
    theory problems?

    I think to the mathematician, everything around him/her is interesting
    especially if it has or can be shown that it has a relation to
    mathematics.
    
    /kgg
    
        
563.7$ SET NOTESFILE/NOGARBAGEVIRTUE::HALLYBFree the quarks!Tue Aug 12 1986 14:0910
.6>    Oh, since when palindromes do not qualify as a math topic? 
.6>    Are you going to stop non math topics? 

    Part of the tradition of noterdom is that you abide by the rules and
    the moderator is the ruler.  If you don't like it, start your own
    notesfile, delcare yourself as moderator, and enjoy yourself.
    
    Verbal palindromes are not a math topic and don't belong here.

      John
563.8well now . . .THEBUS::KOSTASWisdom is the child of experience.Tue Aug 12 1986 14:3414
    re. .7

    John,
    
        I do not agree with what you said in .7 about verbal palindromes
    are a not a math topic. I believe a number of mathematicians have
    spend years in research in that area. Now if you choose to ignore
    the work of other mathematicians it's ok with me. I have not heard
    the opinion of the moderator (which you are not) (show modelator
    shows GILBERT) on this matter.
    
    Regards,
    
    Kostas G.
563.9CLT::GILBERTeager like a childTue Aug 12 1986 15:2310
    I'm reminded of the problem of finding a set of words that contain
    each letter of the alphabet exactly once.  In that problem, there
    was mathematics in the algorithms to search for such a set of words.
    The problem of finding a solution to sentences of the form "This
    sentence contains ___ a's, ... and ___ z's" is also mathematical
    in nature.

    But palindromic English sentences are not particularly mathematical,
    and since this topic already has a home (in JoyOfLex), let's avoid
    the duplication, and give the discussion its appropriate audience.
563.10against my better judgement ...CLT::GILBERTeager like a childWed Sep 10 1986 17:2012
From:	26205::YARBROUGH    10-SEP-1986 11:28
To:	CLT::GILBERT
Subj:	Math notes file

Please add the following to the note (currently set NOWRITE) on palindromic 
words and phrases in the MATH notes file:

	As the moderator might have said,

		"I prefer Pi."

	Lynn Yarbrough