Results 1 to 5 of 5

Math Help - Laplace transform

  1. #1
    Newbie
    Joined
    Sep 2009
    Posts
    9

    Laplace transform

    Hi

    I would like to pass to frequece domain the expressions below
    if possible with step by step using Laplace transform, because
    I not only want the answer, but also learn how to solve them:


    7/s(s+30)


    1/s^3


    3pi/s^2 + 9pi^2

    Thanks in advance

    Moses








    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Have you not been taught how to get a frequency response from the Laplace transform representation of a transfer function?

    (just replace s by i\omega )

    CB
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2009
    Posts
    9
    Thank you for quick reply

    Could you please check below and let me now if this is the right results


    7/(+30)


    1/^3


    3pi/^2 + 9pi^2
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by moisesbr View Post
    Thank you for quick reply

    Could you please check below and let me now if this is the right results


    7/(+30)


    1/^3


    3pi/^2 + 9pi^2
    It is worth simplifying these, (and the last question looks like it has a typo) but they look OK. You might want to turn them into amplitude and phase form.

    CB
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Sep 2009
    Posts
    9
    Please let me know if simplification below is correct and whether
    or not I can simplify beyond it:


    7/(+30)
    7/(^2+30)


    1/^3
    1/^3


    3pi/^2 + 9pi^2
    pi/^2 + 3pi^2
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Laplace transform and Fourier transform what is the different?
    Posted in the Advanced Applied Math Forum
    Replies: 8
    Last Post: December 29th 2010, 10:51 PM
  2. Laplace transform
    Posted in the Advanced Applied Math Forum
    Replies: 5
    Last Post: December 27th 2010, 10:55 AM
  3. Laplace transform
    Posted in the Differential Equations Forum
    Replies: 4
    Last Post: April 22nd 2010, 03:12 AM
  4. Laplace Transform Help
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: April 9th 2009, 10:50 PM
  5. LaPlace Transform
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 12th 2008, 10:35 PM

Search Tags


/mathhelpforum @mathhelpforum