Introduction to mathematical programming
4th Edition
ISBN: 9780534359645
Author: Jeffrey B. Goldberg
Publisher: Cengage Learning
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Expert Solution & Answer
Chapter 2.3, Problem 6P
Explanation of Solution
Using Gauss-Jordan method to indicate the solutions:
Consider the given system of linear equations,
The augmented matrix of this system is as follows:
The Gauss-Jordan method is applied to find the solutions of the above system of linear equations.
Replace row 2 of A|b by (row 2 – row 1), then the following matrix is obtained,
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You solve a non-singular system of 1,000 linear equations with 1,000 unknowns. Your code uses the Gauss-Jordan algorithm with partial pivoting using double precision numbers and arithmetics. Why would the 2-norm of the residual of your solution not be zero?
Use the geometric method to solve a linear programming problem.
a) Solve the following system using naive Gaussian elimination with three digits (rounded )arithmetic and compare the result with the exact solution x1 = 1.00010... and x2 = 0.99989...
10^(-4 *)x1 + x2 = 1
x1 + x2 = 2
b) repeat a)after interchanging the order of two equations
Chapter 2 Solutions
Introduction to mathematical programming
Ch. 2.1 - Prob. 1PCh. 2.1 - Prob. 2PCh. 2.1 - Prob. 3PCh. 2.1 - Prob. 4PCh. 2.1 - Prob. 5PCh. 2.1 - Prob. 6PCh. 2.1 - Prob. 7PCh. 2.2 - Prob. 1PCh. 2.3 - Prob. 1PCh. 2.3 - Prob. 2P
Ch. 2.3 - Prob. 3PCh. 2.3 - Prob. 4PCh. 2.3 - Prob. 5PCh. 2.3 - Prob. 6PCh. 2.3 - Prob. 7PCh. 2.3 - Prob. 8PCh. 2.3 - Prob. 9PCh. 2.4 - Prob. 1PCh. 2.4 - Prob. 2PCh. 2.4 - Prob. 3PCh. 2.4 - Prob. 4PCh. 2.4 - Prob. 5PCh. 2.4 - Prob. 6PCh. 2.4 - Prob. 7PCh. 2.4 - Prob. 8PCh. 2.4 - Prob. 9PCh. 2.5 - Prob. 1PCh. 2.5 - Prob. 2PCh. 2.5 - Prob. 3PCh. 2.5 - Prob. 4PCh. 2.5 - Prob. 5PCh. 2.5 - Prob. 6PCh. 2.5 - Prob. 7PCh. 2.5 - Prob. 8PCh. 2.5 - Prob. 9PCh. 2.5 - Prob. 10PCh. 2.5 - Prob. 11PCh. 2.6 - Prob. 1PCh. 2.6 - Prob. 2PCh. 2.6 - Prob. 3PCh. 2.6 - Prob. 4PCh. 2 - Prob. 1RPCh. 2 - Prob. 2RPCh. 2 - Prob. 3RPCh. 2 - Prob. 4RPCh. 2 - Prob. 5RPCh. 2 - Prob. 6RPCh. 2 - Prob. 7RPCh. 2 - Prob. 8RPCh. 2 - Prob. 9RPCh. 2 - Prob. 10RPCh. 2 - Prob. 11RPCh. 2 - Prob. 12RPCh. 2 - Prob. 13RPCh. 2 - Prob. 14RPCh. 2 - Prob. 15RPCh. 2 - Prob. 16RPCh. 2 - Prob. 17RPCh. 2 - Prob. 18RPCh. 2 - Prob. 19RPCh. 2 - Prob. 20RPCh. 2 - Prob. 21RPCh. 2 - Prob. 22RP
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- Solve the following system of equations by Gaussian elimination method. 2x1 − x2 + x3 = 1 4x1 + x2 − x3 = 5 x1 + x2 + x3 = 0arrow_forwardplease solve Only C and E Use L'Hôpital's rule for botharrow_forwardSolve each of the following congruences. (Give the complete list of solutions) (a) 2x^3 + 3x^2 + x + 1 ≡ 0 ( mod 5)arrow_forward
- Which option is correct for the following system equation? x-y-z=4 2x-2y-2z=8 5x - 5y - 5z = 20 answer a)Finite solutions b)No solution c)Subzero solutions d)Infinitely many solutions e)Unique solutionarrow_forwardSolve on paper pleasearrow_forwardUse the master Theorem to solve the problemarrow_forward
- First Solve with: X = 5Secondly Solve with: X = 2arrow_forwardUse the C++ language to solve the following A)Write a computer program for Gauss elimination method using C programming language. Decide the number of significant figures yourselves. While writing your program, consider the effects of the number of significant figures, pivoting, scaling and do not forget to check if the system is ill conditioned. B)Repeat the same procedures for Gauss-Jordan method. C)Solve an example system using your Gauss elimination and Gauss-Jordan method. Measure the time your computer solves the system for both programs. D)Write a report in which you discuss and compare your Gauss elimination and Gauss-Jordan programs. Upload you report and two code files to the DYS systemarrow_forwardSolve using single application of Simpson’s 3/8 rule, with n = 4 and n= 5arrow_forward
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