# (a) Approximate the time required to execute the forward phase of GaussJordan

## Problem 5 Chapter 9.4

Elementary Linear Algebra: Applications Version | 10th Edition

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Elementary Linear Algebra: Applications Version | 10th Edition

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Problem 5

(a) Approximate the time required to execute the forward phase of GaussJordan elimination for a system of 100,000 equations in 100,000 unknowns using a computer that can execute 1 gigaflop per second. Do the same for the backward phase. (See Table 1.) (b) How many gigaflops per second must a computer be able to execute to find the -decomposition of a matrix of size 10,000 10,000 in less than 0.5 s? (See Table 1.)

Step-by-Step Solution:
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(a) Approximate the time required to execute the forward phase of GaussJordan

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