# Please be clear (don't skip any detail) and clean handwriting https://www.chegg.com/homework-hel... please be clear (don't skip any detail) and clean handwriting

1. (6 points) Find the LU factorization of the following matrix: 2 77-1 2 -1 -19 6 -4-12 7 1 Write your solution as PA -LU for an appropriate permutation matrix P, lower triangular matrix L and upper triangular matrix U. Similar Homework Help Questions
• ### 1 point) Find the LU factorization of 4 -5 -20 23 That is, write A LU where L is a lower triangular matrix with ones on... 1 point) Find the LU factorization of 4 -5 -20 23 That is, write A LU where L is a lower triangular matrix with ones on the diagonal, and U is an upper triangular matrix A= 1 point) Find the LU factorization of 4 -5 -20 23 That is, write A LU where L is a lower triangular matrix with ones on the diagonal, and U is an upper triangular matrix A=

• ### In this exercise you will work with LU factorization of an matrix A. Theory: Any matrix A can be ...

In this exercise you will work with LU factorization of an matrix A. Theory: Any matrix A can be reduced to an echelon form by using only row replacement and row interchanging operations. Row interchanging is almost always necessary for a computer realization because it reduces the round off errors in calculations - this strategy in computer calculation is called partial pivoting, which refers to selecting for a pivot the largest by absolute value entry in a column. The MATLAB...

• ### 2. (a) Let A be the matrix A -4 21 8 -40 Write down the 3 x 3 permutation matrix P such that PA interchanges the 1st and 3rd rows of A. Find the inverse of P. Use Gaussian elimination with partial pi... 2. (a) Let A be the matrix A -4 21 8 -40 Write down the 3 x 3 permutation matrix P such that PA interchanges the 1st and 3rd rows of A. Find the inverse of P. Use Gaussian elimination with partial pivoting to find an upper triangular matrix U, permutation matrices Pi and P2 and lower triangular matrices Mi and M2 of the form 1 0 0 Mi-1A1 10 a2 0 1 M2 0 0 0 b1 with ail...

• ### ALTSIS AND NUMERICAL ANALYSIS 2. (a) Let A be the matrix 2 -115 8-4 Write down the 3 x 3 permutat... ALTSIS AND NUMERICAL ANALYSIS 2. (a) Let A be the matrix 2 -115 8-4 Write down the 3 x 3 permutation matrix P such that PA interchanges the 1st and 3rd rows of A. Find the inverse of P Use Gaussian elimination with partial pivoting to find an upper triangular matix U, permutation matrices Pi and P2 and lower triangular matrices M and M2 of the form 1 0 0 0 1 1 0 0 0 bi 1 with land...

• ### (0) is a lower- Consider the matrix equation Lx u, where L triangular square matrix and x = (p" a... (0) is a lower- Consider the matrix equation Lx u, where L triangular square matrix and x = (p" and u = (u)' are column vectors. In view of Example 97: Solve the n equations for the n variables x1,x2, . . . , rn respectively. 1-12, . Example 97 We can find general formulas that characterize the procedure used in the previous example. Suppose we want to solve the equation Ux = v, where x = (x)' and v-(v)'...

• ### ri R\$ 7:) Here, each V represents a change in voltage (in volts) at a battery,... ri R\$ 7:) Here, each V represents a change in voltage (in volts) at a battery, each R represents a resistance (in ohms) at a resistor and each I represents a current (in amps) through a wire. These quantities obey two simple laws: 1. Ohm's law: The voltage drop across a resistor is V = IR. 2. Kirchhoff's second law: The sum of all the voltage changes in a closed loop is zero. Using these two laws, we can construct...

• ### can someone confirm these answers for me To calculate th e inverse of the 2x2 Hilbert matrix ld have! we wou Usually the fraction in front of the matrix would sim is [ 4 2 plify to 12, and the unroun... can someone confirm these answers for me To calculate th e inverse of the 2x2 Hilbert matrix ld have! we wou Usually the fraction in front of the matrix would sim is [ 4 2 plify to 12, and the unrounded answer -6 121 but in the proble using the given formula and rounding all fractions to a given number of places Do not round of the rounded determinant. (12 points) t in the problems below, you are asked to...

• ### Differention Equations - Can someone answer the checked numbers please? Determinants 659 is the characteristic equation of A with λ replaced by /L we can multiply by A-1 to get o get Now solve fo... Differention Equations - Can someone answer the checked numbers please? Determinants 659 is the characteristic equation of A with λ replaced by /L we can multiply by A-1 to get o get Now solve for A1, noting that ao- det A0 The matrix A-0 22 has characteristic equation 0 0 2 2-A)P-8-12A +62- 0, so 8A1-12+6A -A, r 8A1-12 Hence we need only divide by 8 after computing 6A+. 23 1 4 12 10 4 -64 EXERCISES 1. Find AB,...

• ### https://www.chegg.com/homework-help/mixture-pulverized-fuel-ash-portland-cement-used-grouting-co-chapter-8-problem-12e-solution-9781305251809-exc On the problem listed above, how you do find the rejection region? I don't see... https://www.chegg.com/homework-help/mixture-pulverized-fuel-ash-portland-cement-used-grouting-co-chapter-8-problem-12e-solution-9781305251809-exc On the problem listed above, how you do find the rejection region? I don't see where the 1331.26 came from or how to get that number. step 2 or 7 b) Consider a random sample of 10 specimens. Consider denote the compressive strength. When the null hypothesis, H,: 1300 KN/m2is true, the sampling distribution of Xis normally distributed, then its mean and standard deviations are as follows: - 1300 60 V10 18.97367 18.974 Therefore, X ~N (1300,18.974) Step 3...

• ### i have more than one question so if u no any of the answers please tell me 1

i have more than one question so if u no any of the answers please tell me1.) write the point-slope form of the equation of the line with slope -2 passing through the point ( -5, -9).2.) write the point-slope form of an equation of the line through the points at ( -9, -9) and ( 6, -6).3 find an equation of the line with the slope 9 and y-intercept 3.4.) find the slope-intercept form of the equation of the...

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