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Math Help - Numerical Differentiation ?

  1. #1
    Newbie
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    Numerical Differentiation ?

    Given that
    X Y
    1.0 7.989
    1.1 8.403
    1.2 8.781 Fing dy/dx and d^2y/dx^2 at : (a) x=1.1 (b) x=1.6
    1.3 9.129
    1.4 9.451
    1.5 9.750
    1.6 10.031

    Ans. (a) 3.947,-3.546
    (b) 2.728,-1.703
    Is it correct ?? I want to know is there any trick to conform your answer ??
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by Sameera View Post
    Given that

    X Y
    1.0 7.989
    1.1 8.403
    1.2 8.781 Fing dy/dx and d^2y/dx^2 at : (a) x=1.1 (b) x=1.6
    1.3 9.129
    1.4 9.451
    1.5 9.750
    1.6 10.031

    Ans. (a) 3.947,-3.546
    (b) 2.728,-1.703
    Is it correct ?? I want to know is there any trick to conform your answer ??
    There is no correct answer, it all depends on what method you use to estimate the derivatives, but the values look sort of OK.

    CB
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