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sábado, 17 de julio de 2010

Secant method

SECANT METHOD

Secant method defines a line that pass through (Xn-1 , f(Xn-1)).


Similarly the other methods, we obtain next approximation with a mathematical formulation, check this out:


This formulation comes from central approximation of a function.
To carry out secant method we need two initial approximations, root could not be between this interval; for this reason this methods isn’t a bracketing method.

Here we have steps to apply secant method:


You should repeat those steps till you reach the tolerance expected each case.


1 comentario:

  1. Source:
    http://www.wordiq.com/definition/Secant_method
    http://eom.springer.de/s/s083650.htm
    http://sujinjoshi.co.cc/wordpress/2010/04/15/roots-using-newton-raphson-and-secant-method/

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