bisection.m: Matlab function, p = bisection(f,a,b) used with f.m such that f(a)*f(b)<0.

	Usage: r = bisection(-1,2), or test_bisec.m


my_newton.m: Matlab script file used with f1.m, df1.m where df1 is the Matlab function of the derivative if f1. 

my_secant.m:  Matlab script file used with f1.m.