Bisection and Newton's Method (Tutorial)
http://www.krellinst.org/UCES/archive/resources/roots/
http://www.cs.utah.edu/~zachary/ispmma/applets/Root/Bisection.html
False Position
http://www.ce.memphis.edu/1112/notes/root_finding/false-position.html
Newton-raphson Method
http://www.math.umn.edu/~garrett/qy/Newton.html
Secant method
http://www.cs.laurentian.ca/badams/numeric/javascript/secant.htm
http://mathworld.wolfram.com/SecantMethod.html
http://math.fullerton.edu/mathews/a2001/Animations/RootFinding/SecantMethod/SecantMethod.html
http://www.pe.utexas.edu/Dept/Academic/Courses/SP2001/PGE310/PDFs/CP_3_Sol.pdf