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1. Runge's function is written as f(x) = 1 25r2 (a) Develop a plot of this function for the inter...
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...
matlab The error function is a mathematical function that frequently arises in probability and statistics. It also c...
matlab
The error function is a mathematical function that frequently arises in probability and statistics. It also can show up in the solution to some partial differential equations, particularly those arising in heat and mass transfer applications. The error function is defined as 2 e-t dt picture attached This function is actually built-in to MATLAB as the command erf, and here we'll use that function to compute a "true value" with which we can compare results of two interpolation approaches....
Problem 2. Given the data points (xi. yi), with xi 2 02 4 yil 5 1 1.25 find the following interpo...
Problem 2. Given the data points (xi. yi), with xi 2 02 4 yil 5 1 1.25 find the following interpolating polynomials, and use MATLAB to graph both the interpolating polynomials and the data points: a) The piecewise linear Lagrange interpolating polynomialx) b) The piecewise quadratic Lagrange interpolating polynomial q(x) c) Newton's divided difference interpolation pa(x) of degree s 4
Problem 2. Given the data points (xi. yi), with xi 2 02 4 yil 5 1 1.25 find the following...
Numerical analysis Question 1 The Runge's function is written as follows: f ()125x2 f (x) 1...
Numerical analysis
Question 1 The Runge's function is written as follows: f ()125x2 f (x) 1 + 25x2 a) Evaluate the given function at five equidistantly spaced values over the interval [-1,1]. (Round the b) c) d) final answers to four decimal places.) Using MATLAB, fit the obtained data with a fourth-order polynomial, and plot the result. Using MATLAB, fit the obtained data with a linear spline, and plot the result. Using MATLAB, fit the obtained data with a cubic...
IN MATLAB Write a MATLAB function that can be used by a user to perform polynomial...
IN MATLAB
Write a MATLAB function that can be used by a user to perform polynomial interpolation using Lagrange Interpolation Method on a set of data. You should name your function as YourInitials_Lagrange_interpolation. 1. FUNCTION INPUT: . The input data pairs x and f(x) should be expressed as vectors and are used to construct the interpolation polynomials The interpolating data points/value The order of interpolating polynomials to be used. For this project you code should handle first order, second order...
Please use matlab, post the code, and dont just write the code by hand. Thank you!...
Please use matlab, post the code, and dont just write
the code by hand. Thank you!
4 [3 points] Use the function f(x on the interval [5, 5] and the 11 points below to find a N-10 Lagrange polynomial, using MATLAB. You will need to write code for and plot the polynomial as a function of x, but you do not have to write the polynomials down by hand 5 0 2 3 4 5 f(x) | 0.0399 | 00623...
Compute, using divided differences, the value of the piecewise cubic Her- mite interpolating polynomial at x = 11=10 giv...
Compute, using divided differences, the value of the piecewise
cubic Her-
mite interpolating polynomial at x = 11=10 given nodes at xi = i,
for i = 1; : : : ; 10,
and values and derivatives at the nodes from the function f(x) =
1=x.
Remember iterative formula for divided differences:
2. (25 pts) Compute, using divided differences, the value of the piecewise cubic Her mite interpolating polynomial at x-11/10 given nodes at ai-i, for i-1, , 10. and...
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...
please answer with good handwriting Q1 (a) Given the function f(x)= x - 5x² - 2x...
please answer with good handwriting
Q1 (a) Given the function f(x)= x - 5x² - 2x +10. (1) Prove that there at least a root in the interval [1,3] by using Intermediate Value Theorem. (2 marks) (b) (i) Find the root of f(x) by using Bisection method. Iterate until i = 5. (8 marks) Prove the Lagrange interpolating polynomial of second degree for data of (0,1), (1,2) and (4,2) is P2(x) = -* x2 + x + 1. (5 marks)...
Question 3 (a) Grven that f(-2)= 46, f(-1) 4, J(1) 1, f(3)= 156, and f(4)= 484, formula to estimate f(0) Use four-d...
Question 3 (a) Grven that f(-2)= 46, f(-1) 4, J(1) 1, f(3)= 156, and f(4)= 484, formula to estimate f(0) Use four-decimal arithmetac with rounding use the Lagrange interpolation (8) (b) Why should the Lagrange formula be used in practice only with caution" (2) (e) Wnte down the system of equations that need to be solved in order Function for the following data to construct the natural cubic spline 30 -5 6790 -3 6674 3 1 32-22178 (8) Note You...
matlab
The error function is a mathematical function that frequently arises in probability and statistics. It also can show up in the solution to some partial differential equations, particularly those arising in heat and mass transfer applications. The error function is defined as 2 e-t dt picture attached This function is actually built-in to MATLAB as the command erf, and here we'll use that function to compute a "true value" with which we can compare results of two interpolation approaches....
Problem 2. Given the data points (xi. yi), with xi 2 02 4 yil 5 1 1.25 find the following interpolating polynomials, and use MATLAB to graph both the interpolating polynomials and the data points: a) The piecewise linear Lagrange interpolating polynomialx) b) The piecewise quadratic Lagrange interpolating polynomial q(x) c) Newton's divided difference interpolation pa(x) of degree s 4
Problem 2. Given the data points (xi. yi), with xi 2 02 4 yil 5 1 1.25 find the following...
Numerical analysis
Question 1 The Runge's function is written as follows: f ()125x2 f (x) 1 + 25x2 a) Evaluate the given function at five equidistantly spaced values over the interval [-1,1]. (Round the b) c) d) final answers to four decimal places.) Using MATLAB, fit the obtained data with a fourth-order polynomial, and plot the result. Using MATLAB, fit the obtained data with a linear spline, and plot the result. Using MATLAB, fit the obtained data with a cubic...
IN MATLAB
Write a MATLAB function that can be used by a user to perform polynomial interpolation using Lagrange Interpolation Method on a set of data. You should name your function as YourInitials_Lagrange_interpolation. 1. FUNCTION INPUT: . The input data pairs x and f(x) should be expressed as vectors and are used to construct the interpolation polynomials The interpolating data points/value The order of interpolating polynomials to be used. For this project you code should handle first order, second order...
Please use matlab, post the code, and dont just write
the code by hand. Thank you!
4 [3 points] Use the function f(x on the interval [5, 5] and the 11 points below to find a N-10 Lagrange polynomial, using MATLAB. You will need to write code for and plot the polynomial as a function of x, but you do not have to write the polynomials down by hand 5 0 2 3 4 5 f(x) | 0.0399 | 00623...
Compute, using divided differences, the value of the piecewise
cubic Her-
mite interpolating polynomial at x = 11=10 given nodes at xi = i,
for i = 1; : : : ; 10,
and values and derivatives at the nodes from the function f(x) =
1=x.
Remember iterative formula for divided differences:
2. (25 pts) Compute, using divided differences, the value of the piecewise cubic Her mite interpolating polynomial at x-11/10 given nodes at ai-i, for i-1, , 10. and...
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...
please answer with good handwriting
Q1 (a) Given the function f(x)= x - 5x² - 2x +10. (1) Prove that there at least a root in the interval [1,3] by using Intermediate Value Theorem. (2 marks) (b) (i) Find the root of f(x) by using Bisection method. Iterate until i = 5. (8 marks) Prove the Lagrange interpolating polynomial of second degree for data of (0,1), (1,2) and (4,2) is P2(x) = -* x2 + x + 1. (5 marks)...
Question 3 (a) Grven that f(-2)= 46, f(-1) 4, J(1) 1, f(3)= 156, and f(4)= 484, formula to estimate f(0) Use four-decimal arithmetac with rounding use the Lagrange interpolation (8) (b) Why should the Lagrange formula be used in practice only with caution" (2) (e) Wnte down the system of equations that need to be solved in order Function for the following data to construct the natural cubic spline 30 -5 6790 -3 6674 3 1 32-22178 (8) Note You...
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