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Numerical analysis
Question 1 The Runge's function is written as follows: f ()125x2 f (x) 1...
1. Runge's function is written as f(x) = 1 25r2 (a) Develop a plot of this function for the inter...
1. Runge's function is written as f(x) = 1 25r2 (a) Develop a plot of this function for the interval from x =-1 to 1 using Matlab (no submission required). Develop the fourth-order Lagrange interpolating polynomial using equispaced function values corresponding to xi =-1,-0.5, 0, 0.5, and 1. (Note that you first need to determine the (a. ) pairs.) Use the polynomial to estimate f(0.9). (b) What is et? (c) Generate a cubic spline using the five data points from...
Consider polynomial interpolation of the function f(x)=1/(1+25x^2) on the interval [-1,1] by (1) ...
Consider polynomial interpolation of the function f(x)=1/(1+25x^2) on the interval [-1,1] by (1) an interpolating polynomial determined by m equidistant interpolation points, (2) an interpolating polynomial determined by interpolation at the m zeros of the Chebyshev polynomial T_m(x), and (3) by interpolating by cubic splines instead of by a polynomial. Estimate the approximation error by evaluation max_i |f(z_i)-p(z_i)| for many points z_i on [-1,1]. For instance, you could use 10m points z_i. The cubic spline interpolant can be determined in...
this is numerical analysis 2. Consider the function f(x) = -21° +1. (a) Calculate the interpolating...
this is numerical analysis
2. Consider the function f(x) = -21° +1. (a) Calculate the interpolating polynomial pz() for data using the nodes 2o = -1, 11 = 0, 12 = 1. Simplify the polynomial to standard form. Use the error theorem for polynomial interpolation to bound the error f(x) - P2(x) on the interval (-1,2). Is this bound realistic?
Problem 1 Use the trapezoidal rule technique to approximate the following integrals: a) 「(x2+1)d...
help wanted??
thank you
explain correctly
Problem 1 Use the trapezoidal rule technique to approximate the following integrals: a) 「(x2+1)dr(Note: use 0.5 increments forx) b) sina d INote: use a MATLAB function to subdivide the interval into eight equal parts) c e dx (Note: use 0.25 increments for x Problem 2 Use the Simpson's rule to evaluate the following integrals aDdr Problem 3: Given the polynomial: x3-6x2 + 30-0, Use MATLAB to find all roots of this polynomial. Use MATLAB's...
A wind tunnel test conducted on an airfoil section yielded the following data between the lift...
A wind tunnel test conducted on an airfoil section yielded the following data between the lift coefficient (CL) and the angle of attack (?): 12 1.40 16 1.71 20 1.38 de CL 0.11 0.55 0.95 You are required to develop a suitable polynomial relationship between ? and CL and fit a curve to the data points by the least-squares method using (a) hand calculations and (b) Matlab programming Hint: A quadratic equation (parabola) y(x)-aa,x +a x' can be used in...
Consider the function f(x) 1 25x which is used to test various interpolation methods. For the rem...
Consider the function f(x) 1 25x which is used to test various interpolation methods. For the remainder of this problem consider only the interval [-1, 1] The x-values for the knots (or base-points) of the interpolation algorithm are located at x--1,-0.75, -0.5, -0.25, 0, 0.25, 0.5, 0.75 1. (a) Create a "single" figure in Matlab that contains 6 subplots (2x3) and is labelled as figure (777), i.e the figure number is 777. Plot in each subplot the function f(x) using...
I need help with parts A B D E and F. Please show hand work for...
I need help with parts A B D E and F. Please show hand work
for solving A and B while D and E should be matlab codes. How do i
pick the right graph for part F?
5 2 4 6 Linear spline: s fi+ (x-x) 2) Given the points 40 78 125 256 348 425 X1-x a) Write the correct linear spline equation to interpolate for x 4.72, simplifying where appropriate to get to the slope-intercept form. (4...
3. Consider the function f(x) = cos(x) in the interval [0,8]. You are given the following 3 point...
3. Consider the function f(x) = cos(x) in the interval [0,8]. You are given the following 3 points of this function: 10.5403 2 -0.4161 6 0.9602 (a) (2 points) Calculate the quadratic Lagrange interpolating polynomial as the sum of the Lo(x), L1(x), L2(x) polynomials we defined in class. The final answer should be in the form P)a2 bx c, but with a, b, c known. DELIVERABLES: All your work in constructing the polynomial. This is to be done by hand...
interp1, polyfit, polyval, diff, trap, quad 1 INTERPOLATION (2 PTS) You did an experiment and obtained the followin...
interp1, polyfit, polyval, diff, trap, quad 1 INTERPOLATION (2 PTS) You did an experiment and obtained the following data set 90 x 10 20 30 60 70 80 100 60 82 111 140 167 198 200 220 Y 23 45 Create the x and y vectors to represent the above data and use the interpl command to find the interpolation result for the following questions 1. Use linear interpolation to approximate the value of y when x=15 2. Use cubic...
(Matlab) Suppose we have a function “hw5f.m” that takes as input x and outputs the value for a function f(x). Write a Matlab program that inputs: • interval [a, b]; • m, the number of data points wit...
(Matlab) Suppose we have a function “hw5f.m” that takes as input
x and outputs the value for a function f(x). Write a Matlab program
that inputs: • interval [a, b]; • m, the number of data points with
evenly spaced nodes from x1 = a to xm = b, and values from f(x); •
location z satisfying x2 < z < xm−1, where h = (b − a)/(m −
1); and outputs the value of the interpolaton polynomial using only...
1. Runge's function is written as f(x) = 1 25r2 (a) Develop a plot of this function for the interval from x =-1 to 1 using Matlab (no submission required). Develop the fourth-order Lagrange interpolating polynomial using equispaced function values corresponding to xi =-1,-0.5, 0, 0.5, and 1. (Note that you first need to determine the (a. ) pairs.) Use the polynomial to estimate f(0.9). (b) What is et? (c) Generate a cubic spline using the five data points from...
this is numerical analysis
2. Consider the function f(x) = -21° +1. (a) Calculate the interpolating polynomial pz() for data using the nodes 2o = -1, 11 = 0, 12 = 1. Simplify the polynomial to standard form. Use the error theorem for polynomial interpolation to bound the error f(x) - P2(x) on the interval (-1,2). Is this bound realistic?
help wanted??
thank you
explain correctly
Problem 1 Use the trapezoidal rule technique to approximate the following integrals: a) 「(x2+1)dr(Note: use 0.5 increments forx) b) sina d INote: use a MATLAB function to subdivide the interval into eight equal parts) c e dx (Note: use 0.25 increments for x Problem 2 Use the Simpson's rule to evaluate the following integrals aDdr Problem 3: Given the polynomial: x3-6x2 + 30-0, Use MATLAB to find all roots of this polynomial. Use MATLAB's...
A wind tunnel test conducted on an airfoil section yielded the following data between the lift coefficient (CL) and the angle of attack (?): 12 1.40 16 1.71 20 1.38 de CL 0.11 0.55 0.95 You are required to develop a suitable polynomial relationship between ? and CL and fit a curve to the data points by the least-squares method using (a) hand calculations and (b) Matlab programming Hint: A quadratic equation (parabola) y(x)-aa,x +a x' can be used in...
Consider the function f(x) 1 25x which is used to test various interpolation methods. For the remainder of this problem consider only the interval [-1, 1] The x-values for the knots (or base-points) of the interpolation algorithm are located at x--1,-0.75, -0.5, -0.25, 0, 0.25, 0.5, 0.75 1. (a) Create a "single" figure in Matlab that contains 6 subplots (2x3) and is labelled as figure (777), i.e the figure number is 777. Plot in each subplot the function f(x) using...
I need help with parts A B D E and F. Please show hand work
for solving A and B while D and E should be matlab codes. How do i
pick the right graph for part F?
5 2 4 6 Linear spline: s fi+ (x-x) 2) Given the points 40 78 125 256 348 425 X1-x a) Write the correct linear spline equation to interpolate for x 4.72, simplifying where appropriate to get to the slope-intercept form. (4...
3. Consider the function f(x) = cos(x) in the interval [0,8]. You are given the following 3 points of this function: 10.5403 2 -0.4161 6 0.9602 (a) (2 points) Calculate the quadratic Lagrange interpolating polynomial as the sum of the Lo(x), L1(x), L2(x) polynomials we defined in class. The final answer should be in the form P)a2 bx c, but with a, b, c known. DELIVERABLES: All your work in constructing the polynomial. This is to be done by hand...
interp1, polyfit, polyval, diff, trap, quad 1 INTERPOLATION (2 PTS) You did an experiment and obtained the following data set 90 x 10 20 30 60 70 80 100 60 82 111 140 167 198 200 220 Y 23 45 Create the x and y vectors to represent the above data and use the interpl command to find the interpolation result for the following questions 1. Use linear interpolation to approximate the value of y when x=15 2. Use cubic...
(Matlab) Suppose we have a function “hw5f.m” that takes as input
x and outputs the value for a function f(x). Write a Matlab program
that inputs: • interval [a, b]; • m, the number of data points with
evenly spaced nodes from x1 = a to xm = b, and values from f(x); •
location z satisfying x2 < z < xm−1, where h = (b − a)/(m −
1); and outputs the value of the interpolaton polynomial using only...
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