5. Let Mn(x) be the nth Maclaurin polynomial for f(x) e as given in the text. Use the error formula to a value of n so that |Mn (2) e10-4. You will likely want to use a calculator to determine the va...
1,2,3, and 4 Here are some practice exercises for you. 1. Given f(x) e2, find the a. Maclaurin polynomial of degree 5 b. Taylor polynomial of degree 4 centered at 1 c. the Maclaurin series of f and the interval of convergence d. the Taylor series generated by f at x1 2. Find the Taylor series of g(x) at x1. 3. Given x -t2, y t 1, -2 t1, a. sketch the curve. Indicate where t 0 and the orientation...
4. Define the function f(x) = x/(e* – 1) so that f(0) = 1, then the Maclaurin expansion of f(x) has a positive radius of convergence. a) When the Maclaurin expansion is expressed in the form B2 B3 3 i=1+ B13 +31 x2 + x3 + ... + x" + ... n! the coefficients B1, B2, B3,... are called the Bernoulli numbers. Substitute the Maclaurin series for et and use polynomial long-division to find the first four Bernoulli numbers. b)...
3. (30 points) Let f(x) = 1/x and data points Zo = 2, x,-3 and x2 = 4. Note that you can use the abscissae to find the corresponding ordinates (a) (8 points) Find by hand the Lagrange form, the standard form, and the Newton form of the interpolating polynomial p2(x) of f(x) at the given points. State which is which! Then, expand out the Newton and Lagrange form to verify that they agree with the standard form of p2...
6. Consider f(x)-sinx and evenly spaced nodes 0-0 < xīく… < Zn-2T. Let P(z) be the piecewise cubic interpolant given values and first derivatives of f at the nodes. (a) In the case n = 100, use calculus and the error formula 4! where 1 E [xi,Ti+1], to bound the absolute error lf(1)-P(1) (b) For arbitrary x E [0.2 , use error bounds to determine n ensuring that If(x)- P(x) s 10-10 6. Consider f(x)-sinx and evenly spaced nodes 0-0
Exercise 6: Given the table of the function f(x)-2" 2 X 0 3 2 f(x) 1 2 4 8 a) Write down the Newton polynomials P1(x), P2(x), Pa(x). b) Evaluate f(2.5) by using Pa(x). c) Obtain a bound for the errors E1(x), E2(x), Es(x) Exercise 7: Consider f(x)- In(x) use the following formula to answer the given questions '(x) +16-30f+16f,- 12h a) Derive the numerical differentiation formula using Taylor Series and find the truncation error b) Approximate f'(1.2) with h-0.05...
10. Let and consider approximating its average value on the interval (0,2) given by the integral 4-2 dx. 0 (a) Use Calculus to show that the the exact answer is π/2. (Hint: You may want to substitute 2 sin , and later use the trignometric identify cos(20)-1-2 cos2 θ). (b) Assume r is uniformly distributed in (0,2). What is the expected value, E f ()] How is the formula for expected value related to the expression given by expression in...
Newton-Raphson scheme ? Calculus Suppose you want to find zeros of the function f(x)102212 and plan to use the Newton-Raphson scheme. (a) Write down the Newton-Raphson algorithm for this. That is, write down explicitly a formula for computing your (n+1)st guess Tn+1 given your nth guess rn for a root. In other words, deter- mine the recurrence relation resulting from using this particular function f. (b) Modifying Algorithm 2.2 as required, find the values through x7 if you choose an...
5. Let f(z) = arctan(z) (a) (3 marks) Find the Taylor series about r)Hint: darctan( You may assume that the Taylor series for f(x) converges to f(x) for values of r in the interval of convergence (b) (3 marks) What is the radius of convergence of the Taylor series for f(z)? Show that the Taylor series converges at z = 1 (c) (3 marks) Hence, write as a series. (d) (3 marks) Go to https://teaching.smp.uq.edu.au/scims Calculus/Series.html. Use the interactive animation...
Problem 5. Consider least squares polynomial approximation to f(x) = cos (nx) on x E [-1,1] using the inner product 1. In finding coefficients you will need to compute the integral By symmetry, an 0 for odd n, so we need only consider even n. (a) Make a change of variables and use appropriate identities to transform the integral for a to cos (Bcos 8)cos (ne) de (b) The Bessel function of even order, (x), can be defined by the...
Determine the power series of f(x) = xe^x about the value a = 0. To receive full credit you must explain how you obtained the series and write this series using both summation notation sum cnxn from n=0 to infinity and as an “infinite” polynomial f (x) = c0 + c1 x + c2 x2 + · · · . (a) Use the first SIX terms of the series from part (a) to obtain a decimal approximation for the number...