polyroot_NR: Find one real polynomial root using Newton-Raphson method.

In merkys/MixtureFitting: Fitting of univariate mixture distributions to data using various approaches

Find one real polynomial root using Newton–Raphson method.

Description

Finds one real polynomial root using Newton–Raphson method, implemented according to Wikipedia.

Usage

    polyroot_NR( p, init = 0, epsilon = 1e-6, debug = FALSE, implementation = "C" )

Arguments

p	vector of polynomial coeficients.
init	initial value.
epsilon	tolerance threshold for convergence.
debug	flag to turn the debug prints on/off.
implementation	flag to switch between C (default) and R implementations.

Value

Real polynomial root.

Author(s)

Andrius Merkys

References

Users of Wikipedia. Newton's method. https://en.wikipedia.org/w/index.php?title=Newton%27s_method&oldid=710342140

merkys/MixtureFitting documentation built on Feb. 26, 2023, 5:21 p.m.