this is numerical analysis please do all the questions 1. A function g(x) is called a...
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...
Please answer all questions
Q2 2015
a) show that the function f(x) = pi/2-x-sin(x)
has at least one root x* in the interval [0,pi/2]
b)in a fixed-point formulation of the root-finding problem, the
equation f(x) = 0 is rewritten in the equivalent form x = g(x).
thus the root x* satisfies the equation x* = g(x*), and then the
numerical iteration scheme takes the form x(n+1) = g(x(n))
prove that the iterations converge to the root, provided that
the starting...
Only g and h needs answers
(1 point) Book Problem 3 Consider the function f(x) = x + 2 cos(x), 0<x<21. For the following questions, write inf for , -inf for - , U for the union symbol, and NA (ie. not applicable) if no such answer exists. a.) f'(x) = 1-2sinx b.) f(x) is increasing on the interval(s) (0,pi/6)U(5pi/6,2pi) c.) f(x) is decreasing on the interval(s) (pi/6,5pi/6) d.) f(x) has a local minimum at 5pi/6 e.) f(x) has a...
Convince yourself that the Maclaurin Series for cos(x) is:
A. Write a function script called cos_series
that takes that takes as its inputs, x and N and has output given
by the sum in the N-term Maclaurin Series approximation for Cos(x).
Hint: try a “for loop” and set “format long” in
your code. You may use the MATLAB built-in function factorial()
B. Check your code by finding the 2-terms,
3-terms, 4-terms, 5-terms and 6-terms Maclaurin Series
approximations every 30 degrees...
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...
4 Suppose f : (0,0) → (0,x), is a differentiable function satisfying f(a +b)-f(a)fb), for all a,b>0 Moreover, assume that f(0)1 (a) Prove that there exists λ (not necessarily positive) such that f(r) = e-Ar, for all r. Hint Find and solve a proper differential equation. (b) Suppose that X is a continuous random variable, with P(X>ab)-P(>a)P(X> b), for all a, b e (0, oo). Prove that X is exponentially distributed
this is numerical analysis. Please do all the questions
3. (a) Consider the quadrature rule path ( * s(a)dx = Af (a – 1) + Bf(a) + Cf(a+h). Find A, B, C which maximize the degree of precision. Hint: First derive the rule for a = 0 and then use a change of variable. (b) State this degree of precision and verify it is not any higher. (c) Suppase g is a function whose 3rd divided differences are all the...
8. Given the function g(x) = 0.75 cos(x – 0.5, the period is a. 4 b. EIN c. d. 0.5
rt) dt, where f is the function whose graph is shown. /, 0 Let g(x)- f(t) 2 (a) At what values of x do the local maximum and minimum values of g occur? Xmin xmin = xmax = Xmax (smaller x-value) (larger x-value) (smaller x-value) (larger x-value) (b) Where does g attain its absolute maximum value? (c) On what interval is g concave downward? (Enter your answer using interval notation.) (d) Sketch the graph of g. 0.5 -0.5 2 46...
1. Given the data table with f(x) = yn for a unkown function f, determine the cubic spline interpolation that intersects with the 3 data points. No need to solve for the coefficients. Just set up the eight equations. 1.1 3.5 1.2 3.7 1.3 2.9 2. The fixed point iteration can be used to find the solution of a function f(r) = 0. To use this method, we need to first identify g(x) such that the solution of g(x) =...