Tuesday, December 29, 2009

Matrices Multiplication in Calculating a Population's New %

Here's the link for the article I found: http://www.sosmath.com/matrix/matrix1/matrix1.html
It tells how multiplying matrices is useful in life!!
They give an example about a city with inner and suburb kinds of populations and that every year, a certain % of the inner population moves to the suburbs and vice versa. In order to find the new % of the inner and suburb population, they represented the initial population of the inner city with respect to the suburbs with a 2x1 matrix, then multiplied it on the left by a 2x2 matrix representing the variables. Therefore, using matrices multiplication, they can calculate the new % of population in each part of the city for as many years as they like!! :)

So matrices are really an easy and simple way to solve some problems because, in this previous example, using another formula woul've made things hard to solve (ex: the % of the population after 1o years might get so complicated) while using matrices makes things very delicate!!


SANDRA ABOU HARB 20091661
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12 comments:

  1. UnknownDecember 29, 2009 at 3:02 PM

    Dear,

    Thanks a lot! Very interesting indeed!

    Well, wait a bit until we have more Postings, and then find a good example to comment on. Ok?

    Enjoy your vacations!

    Zeina

    ReplyDelete
  2. OliverDecember 29, 2009 at 7:54 PM

    It was a very intresting post, i enjoyed discovering how matrices can be used in this real life application and it really does give an accurate figure of assumption for future population increase.
    Thnx

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  3. johnhittiDecember 29, 2009 at 9:09 PM

    VERy interesting and amusing.Thank you for posting it i enjoyed it and it tought me how matrices can b useful in real life applications and calculating population increase:D

    ReplyDelete
  4. AlessandraDecember 29, 2009 at 11:46 PM

    This comment has been removed by the author.

    ReplyDelete
  5. SkandarDecember 30, 2009 at 7:15 PM

    WOW, i cant wait to use it to learn how to calculate the new % of population in each part of the city for as many years as i like.
    Thanks a lot Allous (K)♥

    ReplyDelete
  6. anthonybasDecember 30, 2009 at 8:14 PM

    Nice way to estimate and anticipate population percentages using simple mathematical matrices. Good post

    ReplyDelete
  7. AlessandraDecember 31, 2009 at 12:29 AM

    hey skandar, no need lal maskhara and i'm nt ur buddy 2 call me nicknames, stick 2 the subject and b respectful!

    ReplyDelete
  8. charlJanuary 3, 2010 at 2:26 PM

    so intresting...
    a real easy way 2 count the population
    gd job..

    ReplyDelete
  9. UnknownJanuary 4, 2010 at 1:03 AM

    I need full name please!

    Thanks, Zeina

    ReplyDelete
  10. UnknownJanuary 4, 2010 at 1:06 AM

    Who is Skandar??? I need him to talk to me in class.

    Thanks, Zeina

    ReplyDelete
  11. AlessandraJanuary 4, 2010 at 11:14 PM

    hey miss, it's Sandra Abou Harb 20091661 :)

    ReplyDelete
  12. Aida L.January 5, 2010 at 6:47 PM

    Hello Sandra,
    I really enjoyed reading your post.It is really interesting to know that matrices are used to caculate the new percentge of population. Nice post

    ReplyDelete

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