Computer Science: An Overview: Global Edition (12th Edition)

Published by Pearson Higher Education
ISBN 10: 1292061162
ISBN 13: 978-1-29206-116-0

Chapter 6 - Programming Languages - Chapter Review Problems - Page 327: 59

Answer

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Work Step by Step

The issue encountered when executing the provided program segment on a computer using an eight-bit floating-point format is related to precision and representation of decimal numbers. In an eight-bit floating-point format, there would likely be insufficient precision to accurately represent the values of \( X \) and \( 0.01 \). Floating-point formats generally allocate bits for representing the sign, exponent, and mantissa of a number. With only eight bits, there's a limited range of values that can be represented, and precision is sacrificed. In this program, \( X \) starts at \( 0.01 \), and it is incremented by \( 0.01 \) in each iteration of the loop until \( X \) equals \( 1.00 \). However, due to the limited precision of the eight-bit floating-point format, the actual value of \( X \) may not precisely reach \( 1.00 \). It might terminate the loop before reaching exactly \( 1.00 \), or it might not terminate at all due to rounding errors. As a result, the loop condition \( X \neq 1.00 \) might never be satisfied, leading to an infinite loop or premature termination, depending on how the floating-point arithmetic is implemented. This inconsistency in precision and representation can lead to unexpected behavior in the program.
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