Results 1 to 3 of 3

Thread: Number Scaling

  1. #1
    Dec 2009

    Red face Number Scaling

    I apologize,I don't know what the proper name for what I'm trying to achieve is...

    Let's say I have a set of distances between 0 and 300. One of those distances is 25.33.

    Then I have another ranking scale that ranges between 1.3 and 0.9 that is used as an exponent.

    I want to choose the ranking exponent based on the distance. So if distance is 0 then it is ranked at 1.3 and if the distance is 300 it is ranked at 0.9.

    How do I find what ranking exponent to use for a distance of 25.33? Not specifically this number, but the math that would let me calculate it for any number between 0 and 300...

    Thanks for any help!
    Last edited by bdiggs; Dec 28th 2009 at 05:45 PM. Reason: fixed typo
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member integral's Avatar
    Dec 2009
    if 0 is ranked 1.33
    and 300 is ranked .9 than
    it went down 0.43 in 300.
    so \Delta r= \frac{.43}{300}d were r is rank and d is distance
    r=1.33- \frac{.43}{300}d

    r=1.33- \frac{.43}{300}25.33=1.26694
    for 0
    for 300

    --- \int
    Last edited by integral; Dec 28th 2009 at 07:49 PM.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Dec 2009
    thank you! I think this will be precisely what I need!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Scaling grades.
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: Dec 28th 2010, 05:43 PM
  2. Linear scaling
    Posted in the Algebra Forum
    Replies: 2
    Last Post: Nov 9th 2010, 09:47 PM
  3. weird scaling law...
    Posted in the Calculus Forum
    Replies: 7
    Last Post: Oct 27th 2010, 10:32 AM
  4. Log Scaling
    Posted in the Math Software Forum
    Replies: 4
    Last Post: Apr 22nd 2009, 08:55 AM
  5. Scaling up question
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: Aug 23rd 2007, 03:08 AM

Search Tags

/mathhelpforum @mathhelpforum