Programming Language:
    Complex Numbers | Linear Algebra | Fit Algorithms | Interpolation | Root Finding | ODE | FFT | Special Functions | Integration

    INTEGRATION AND DIFFERENTIATION

    - anlaysis with Xi -

    For numerical integration and differentiation Xi computes a spline under tension through the data points. The use is straight forward:

    (  1)>x=dincarr(100)/100;
    (  2)>print(integrate(x,exp(x)+1,0,1));
    <double> 2.71828
    (  3)>print(derive(x,exp(x),{0,1}));
    <dblarr>
            1 2.7182787
    
    Please note that the function derive expects an array for desired positions.


    Rechts Index Index Index Linls © 1995 by Bodo Junglas, Klaus Spanderen and Fabian Weis
    - Last revised: April 23 1996