Can you help me with parts A to D please? Thanks
3 Newton and Secant Method [30 pts]. We want to solve the equation f(x) 0, where f(x) = (x-1 )4. ...
2. (a) We want to find the root x of the function f(x); that is, we need f(r) = 0 . This can be done using Newton's method, making use of the iterative formula f(xn) Show that the sequence ofiterates (%) converges quadratically if f'(x) 0 in some appropriate interval of x-values near the root χ 9 point b) We can get Newton's method to find the k-th root of some number a by making it solve the non-linear cquation...
5. Let f(x) = ax2 +bx+c, where a > 0. Prove that the secant method for minimization will terminate in exactly one iteration for any initial points Xo, X1, provided that x1 + xo: 6. Consider the sequence {x(k)} given by i. Write down the value of the limit of {x(k)}. ii. Find the order of convergence of {x(k)}. 7. Consider the function f(x) = x4 – 14x3 + 60x2 – 70x in the interval (0, 2). Use the bisection...
Consider Newton's method for solving the scalar nonlinear equation f(x) = 0. Suppose we replace the derivative f'(xx) with a constant value d and use the iteration (a) Under what condition for d will this iteration be locally convergent? (b) What is the convergence rate in general? (c) Is there a value for d that would lead to quadratic convergence?
3. (30 pts) (Problem 6.2) Determine the highest real root of f(x) 2x3- 11.7x2 + 17.7x -5 a) Graphically. b) Write a MATLAB program using the fixed-point method to determine the root with xo- Write a MATLAB program using the Newton-Raphson method to determine the root with Xo-3. c) d) Write a MATLAB program using the secant method to determine the root with x-1-3 and Xo- 4. e) Compare the relative errors between these three methods at the third iteration...
2. (a) Suppose we have to find the root xof x); that is, we have to solve )0. Fixed-point methods do this by re-writing the equation in the form x·= g(x*) , and then using the iteration scheme : g(x) Show this converges (x-→x. as n→o) provided that K < 1 , for all x in some interval x"-a < x < x*+a ( a > 0 ) about the rootx 6 points] (b) Newton's method has the form of...
solve using Newton Method
Numerical
TJ Find the mulliplicity of rock 1 f(x) = (x-1)2 inx 2 Find the order of convergence Pit en 9 digits accuracy 13 give the root of f(x) = xinx + x2 -10 f(x) = (x-2)(x-4) Find RA Por both Theo, Num. וחט P(x) = x - 1 Find R.A Theo. Num. convergence OfW= (x-2)(x+) Accelarate the at p=2, numerically secant method 13_f(x) = x3 - 2 Cosx - 17 2 significant
Suppose you want to find a fixed point of a smooth function g(x)
on the interval [a,b]
a. Give conditions which would be sufficient to show that fixed
point iteration on g(x), starting with some
[a,b], will converge to the fixed point p.
b. When is this convergence only linear?
c. When is this convergence only quadratic?
d. Suppose a smooth function f(x) has a root p with f '(p) != 0.
Assuming you choose the initial guess close enough...
Problem 4 (5 pt) Compute a root of the function f(x) = x2-2 using the secant method with initial guess xo - 1.5 and xj 1 Choose a different initial guess and compute another root of the function f(x)
Problem 4 (5 pt) Compute a root of the function f(x) = x2-2 using the secant method with initial guess xo - 1.5 and xj 1 Choose a different initial guess and compute another root of the function f(x)
Newton invented the Newton-Raphson method for solving an equation. We are going to ask you to write some code to solve equations. To solve an equation of the form x2-3x + 2-0 we start from an initial guess at the solution: say x,-4.5 Each time we have the i'h guess x, we update it as For our equation,f(x) = x2-3x + 2 andf,(x) = 2x-3. Thus, our update equation is x2 - 3x, 2 2x, - 3 We stop whenever...
Newton's Method Derivation (20 pts) Derive Newton's method, also known as Newton- Raphson method, starting from Taylor Series. (a) Write the first order Taylor series expansion for f (x) about xo. We will call this polynomial To(x). Define your step as (xı - xo) (b) What kind of curve is To(x) (line, parabola, cubic, ...)? (c) Solve for the root of To(x). This will give you x1. If you're not sure what to do (d) Repeat the steps above but...