Calc.MWeb - My Software

Finite Differences


Download Now: FINTDIFF.8xp v1.6

About:   Finite Differences uses the finite differences method to determine the equation that represents a given sequence of numbers. Simply enter in the terms as the program asks for them. Once it has determined the polynomial equation, it will stop and display the coefficients.

For example, if you have the following sequence:     2, 5, 10, 17, 26
Its equation would be:     An = n2+1     Meaning the nth term is equal to n squared plus one.

You simply enter 2, then 5, then 10, then 17, when the calculator stops and displays:
        Coefficients:
        {1 0 1}
The numbers in this list (stored in L1) are the coefficients of your polynomial expression. The first being the coefficient of the highest-degree term, and the last being a constant. For example, {2 1 3 4} would represent  2x3 + x2 + 3x + 4 .

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