Homework Answers
f(x) = 0 => x = 2*sin(
)
according to simple fixed-point iteration method:
we may create the following table in MS excel:
Hence, the converged root is: 1.97238 _________________ Answer
Since 
,
hence, we may conclude that the convergence is linear in nature.
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3) Use simple fixed-point iteration to locate the root of f(x) = 2 sin(x) - x...
2. Find a root ofthe functionf(x)=cos(x) +sin(x)-2x2 to fourdeci mal places for!f(xn +1 )1< 0.001...
2. Find a root ofthe functionf(x)=cos(x) +sin(x)-2x2 to fourdeci mal places for!f(xn +1 )1< 0.001 and Ixn-1-Xnl0.001 for each of the following rootfinding methods and initial guesses: a) Newton's Method, for xo = 0.2. b) Secant Method, for x-,-0.2 and xo = 0.5. c) Considering the following fixed point problern for xo=0.2 cos(xn)sin(n) d) Write a code to approximate the root of f(x) for each a), b) andc
2. Find a root ofthe functionf(x)=cos(x) +sin(x)-2x2 to fourdeci mal places for!f(xn...
in matlab -Consider the equation f(x) = x-2-sin x = 0 on the interval x E [0.1,4 π] Use a plot to approximately locate the roots of f. To which roots do the fol- owing initial guesses converge wh...
in
matlab
-Consider the equation f(x) = x-2-sin x = 0 on the interval x E [0.1,4 π] Use a plot to approximately locate the roots of f. To which roots do the fol- owing initial guesses converge when using Function 4.3.1? Is the root obtained the one that is closest to that guess? )xo = 1.5, (b) x0 = 2, (c) x.-3.2, (d) xo = 4, (e) xo = 5, (f) xo = 27. Function 4.3.1 (newton) Newton's method...
2. [10 pts ] Use fixed-point iteration to determine a solution accurate to within 10-3 for f(x) x...
2. [10 pts ] Use fixed-point iteration to determine a solution accurate to within 10-3 for f(x) x - cos(x)/2, for x in [ 0,1]. Use your calculator to calculate values, but be sure to show what values are being calculated. (a) show the function g(o) that you use: (b) show the initial value po that you use: (c) show the computations for the successive values of the pi until convergence:
2. [10 pts ] Use fixed-point iteration to determine...
Determine the root of f(x)= e^x-2x-1 using fixed point iteration with initial value of 1.0 ?
Determine the root of f(x)= e^x-2x-1 using fixed point iteration with initial value of 1.0 ?
Consider f(z32. (a) Prove that f(x)3 - 4z 2 has a root in [0,1] (b) Define...
Consider f(z32. (a) Prove that f(x)3 - 4z 2 has a root in [0,1] (b) Define a function g(x) such that x is a fixed point of g if and only if it is a zero 2"- of f. (c) Verify that fixed-point iteration with your function g and zo 0.5 will converge (d) Starting with x,-0.5, perform as many iterations as required to find a root of f to 6 decimal places.
Please answer all questions Q2 2015 a) show that the function f(x) = pi/2-x-sin(x) has at...
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...
4) (16 points) The function f(x)= x? – 2x² - 4x+8 has a double root at...
4) (16 points) The function f(x)= x? – 2x² - 4x+8 has a double root at x = 2. Use a) the standard Newton-Raphson, b) the modified Newton-Raphson to solve for the root at x = 2. Compare the rate of convergence using an initial guess of Xo = 1,2. 5) (14 points) Determine the roots of the following simultaneous nonlinear equations using a) fixed-point iteration and b) the Newton-Raphson method: y=-x? +x+0,75 y + 5xy = r? Employ initial...
3. (30 pts) (Problem 6.2) Determine the highest real root of f(x) 2x3- 11.7x2 + 17.7x...
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...
Employ Newton with finite difference formula method to locate the global maximum of f(x) = -6.3...
Employ Newton with finite difference formula method to locate the global maximum of f(x) = -6.3 sin(x - 5) cos(x + 7) + In(x), 3 < x < 9 iterate until Es = 0.01%. Show at least 3 iteration of calculation.
Let f(x) = sin(2) + 2xe Use the secant method for finding the root. Conduct two...
Let f(x) = sin(2) + 2xe Use the secant method for finding the root. Conduct two iterations to estimate the root of the above equation. Let us assume the initial guesses of the root as Xo = -0.55, x1 = 0.66 Answer:
2. Find a root ofthe functionf(x)=cos(x) +sin(x)-2x2 to fourdeci mal places for!f(xn +1 )1< 0.001 and Ixn-1-Xnl0.001 for each of the following rootfinding methods and initial guesses: a) Newton's Method, for xo = 0.2. b) Secant Method, for x-,-0.2 and xo = 0.5. c) Considering the following fixed point problern for xo=0.2 cos(xn)sin(n) d) Write a code to approximate the root of f(x) for each a), b) andc
2. Find a root ofthe functionf(x)=cos(x) +sin(x)-2x2 to fourdeci mal places for!f(xn...
in
matlab
-Consider the equation f(x) = x-2-sin x = 0 on the interval x E [0.1,4 π] Use a plot to approximately locate the roots of f. To which roots do the fol- owing initial guesses converge when using Function 4.3.1? Is the root obtained the one that is closest to that guess? )xo = 1.5, (b) x0 = 2, (c) x.-3.2, (d) xo = 4, (e) xo = 5, (f) xo = 27. Function 4.3.1 (newton) Newton's method...
2. [10 pts ] Use fixed-point iteration to determine a solution accurate to within 10-3 for f(x) x - cos(x)/2, for x in [ 0,1]. Use your calculator to calculate values, but be sure to show what values are being calculated. (a) show the function g(o) that you use: (b) show the initial value po that you use: (c) show the computations for the successive values of the pi until convergence:
2. [10 pts ] Use fixed-point iteration to determine...
Consider f(z32. (a) Prove that f(x)3 - 4z 2 has a root in [0,1] (b) Define a function g(x) such that x is a fixed point of g if and only if it is a zero 2"- of f. (c) Verify that fixed-point iteration with your function g and zo 0.5 will converge (d) Starting with x,-0.5, perform as many iterations as required to find a root of f to 6 decimal places.
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...
4) (16 points) The function f(x)= x? – 2x² - 4x+8 has a double root at x = 2. Use a) the standard Newton-Raphson, b) the modified Newton-Raphson to solve for the root at x = 2. Compare the rate of convergence using an initial guess of Xo = 1,2. 5) (14 points) Determine the roots of the following simultaneous nonlinear equations using a) fixed-point iteration and b) the Newton-Raphson method: y=-x? +x+0,75 y + 5xy = r? Employ initial...
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...
Employ Newton with finite difference formula method to locate the global maximum of f(x) = -6.3 sin(x - 5) cos(x + 7) + In(x), 3 < x < 9 iterate until Es = 0.01%. Show at least 3 iteration of calculation.
Let f(x) = sin(2) + 2xe Use the secant method for finding the root. Conduct two iterations to estimate the root of the above equation. Let us assume the initial guesses of the root as Xo = -0.55, x1 = 0.66 Answer:
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