Results 1 to 6 of 6

Math Help - Calculate M4

  1. #1
    Member
    Joined
    Feb 2010
    Posts
    98

    Calculate M4

    Calculate for over . _______
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by tbenne3 View Post
    Calculate for over . _______
    What is M_4 meant to mean? MIdpoint Rule using 4 rectangles?

    Please remember that notation that is obvious to you the person wanting help is not always obvious to us the people you want help from.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Feb 2010
    Posts
    98
    Quote Originally Posted by mr fantastic View Post
    What is M_4 meant to mean? MIdpoint Rule using 4 rectangles?

    Please remember that notation that is obvious to you the person wanting help is not always obvious to us the people you want help from.
    Sorry about that, it stands for Midpoint Approximation (Mn)
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by tbenne3 View Post
    Sorry about that, it stands for Midpoint Approximation (Mn)
    OK, so your textbook and class notes will have a formula and examples. Where are you stuck here?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Member
    Joined
    Feb 2010
    Posts
    98
    Quote Originally Posted by mr fantastic View Post
    OK, so your textbook and class notes will have a formula and examples. Where are you stuck here?
    Ok well in the text they have a similar problem to look at and it has
    f(x)=x^2, [0,1]

    and their solution is

    (1/4)(.125^2+.375^2+.625^2+.875^2)

    I cant figure out where they are getting the .125,.375,.625,.875
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Senior Member
    Joined
    Jan 2010
    Posts
    354
    Quote Originally Posted by tbenne3 View Post
    Ok well in the text they have a similar problem to look at and it has
    f(x)=x^2, [0,1]

    and their solution is

    (1/4)(.125^2+.375^2+.625^2+.875^2)

    I cant figure out where they are getting the .125,.375,.625,.875
    In that example, they are dividing the interval [0,1] into 4 equal sub-intervals, like so:

    [0,0.25] [0.25,0.5] [0.5,0.75] and [0.75,1]

    Next, you need to find the midpoint of each interval, because this is what you will use to plug into f(x) for each sub-interval.

    Midpoint of [0,0.25] is 0.125
    Midpoint of [0.25,0.5] is 0.375
    etc.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Is it possible to calculate x and y....
    Posted in the Algebra Forum
    Replies: 2
    Last Post: November 29th 2010, 02:16 PM
  2. calculate
    Posted in the Algebra Forum
    Replies: 5
    Last Post: April 27th 2010, 10:35 AM
  3. Calculate
    Posted in the Calculus Forum
    Replies: 1
    Last Post: April 14th 2010, 03:11 AM
  4. Calculate PDF of Y-Z given Y>Z
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: March 27th 2010, 08:15 PM
  5. Calculate this sum
    Posted in the Number Theory Forum
    Replies: 1
    Last Post: August 29th 2009, 12:50 AM

Search Tags


/mathhelpforum @mathhelpforum