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How to do this vector operation in MATLAB ?

  1. May 10, 2013 #1
    Hi friends,
    I wanted a help in Matlab programming. I have some vectors as below :

    d4=cos(2*pi*293.665*(0:1/44100:.25));
    f4=cos(2*pi*349.228*(0:1/44100:.25));
    e4=cos(2*pi*329.628*(0:1/44100:.25));
    g4=cos(2*pi*391.995*(0:1/44100:.25));
    c5=cos(2*pi*523.251*(0:1/44100:.25));
    bb4=cos(2*pi*466.164*(0:1/44100:.25));
    a4=cos(2*pi*440*(0:1/44100:.25));
    c4=cos(2*pi*261.626*(0:1/44100:.25));

    and finally a vector x build from the above vectors :

    x=[c4 c4 d4 c4 f4 e4 c4 c4 d4 c4 g4 f4 c4 c4 c5 a4 f4 e4 d4 bb4 bb4 a4 f4 g4 f4];

    here a4 must be assigned 1, bb4 - 2, c4 - 3, d4 - 5, e4 - 6 , f4 - 7 and g4 - 8. I wanted to create a vector y from x. y must be as below :

    y = [3 3 5 3 7 6 3 3 5 3 8 7 3 3 4 1 7 6 5 2 2 1 7 8 7] ;

    TIA
     
  2. jcsd
  3. May 11, 2013 #2

    kreil

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    Gold Member

    Some more information would help here. Based on what you've written it looks like typing in that vector works just fine, given that you want to take a vector with 275k+ elements and turn it into one with 25.
     
  4. Jun 5, 2013 #3
    Track representation in Matlab

    Hi,

    I was wondering if anyone could help me. I need to simulate a race track using matlab and do not know how to go about this?

    Any suggestions welcome.

    Thank you
     
  5. Jun 5, 2013 #4

    kreil

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    Gold Member

    RacingFan, start a new thread and include as much information as possible on the problem,as well as what you've tried already.
     
  6. Jun 6, 2013 #5
    How do i start a new thread? sorry new to this!
     
  7. Jun 6, 2013 #6

    kreil

    User Avatar
    Gold Member

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