= 5. Consider the problem y h(x1, x) = x1x2 of multiplying two nonzero real numbers....
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= 5. Consider the problem y h(x1, x₂) = x1x2 of multiplying two nonzero real numbers. On a computer the algorithm for approximating the product is yA = hA(x1, x2) = f(x1) fl(x2), where is the inexact floating point multiplication. Show that the algorithm is backwards stable. That is, show hA(x1, x2) = h(x1 + 8x1, x2 + 8x2), where 8x1/x1 = O(Emach) and 6x2/x2] = 0(Emach). Is the perturbation of the inputs unique? = 5. Consider the problem y h(x1, x₂) = x1x2 of multiplying two nonzero real numbers. On a computer the algorithm for approximating the product is yA = hA(x1, x2) = f(x1) fl(x2), where is the inexact floating point multiplication. Show that the algorithm is backwards stable. That is, show hA(x1, x2) = h(x1 + 8x1, x2 + 8x2), where 8x1/x1 = O(Emach) and 6x2/x2] = 0(Emach). Is the perturbation of the inputs unique?
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Problem Statement Function y hx1 x2 x1 x2 multiplying two nonzero real numbers Approximation Algorithm yA hx1 x2 x1x2 using inexact floatingpoint multiplication Task Demonstrate backward stability of ... View the full answer
Related Book For
Computer Organization And Design The Hardware Software Interface
ISBN: 9780123747501
4th Revised Edition
Authors: David A. Patterson, John L. Hennessy
Posted Date:
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