Modified Secant Method for Finding Roots of Equation
by admin in Math, Statistics, and Optimization , MATLAB Family , Roots of Equation on April 10, 2019Rather than using two arbitrary values to estimate the derivative as in secant method, an alternative approach involves a fractional perturbation of the independent variable to estimate f ‘(x):
Where delta = a small perturbation fraction. This approximation can be substituted in the Secant formula to yield:
The example used in this code:
The code shows the root value and the plot of the value-update with number of iterations.
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