1) For IEEE 754 single precision floating point numbers, if X is a negative denormalized floating point number with mantisa 010 0000 0000 0000 0000 0000, what is the decimal value of X? Question options: a. –1.25 × 2^(–126 ) b. –1.25 × 2^(–127 ) c. –0.25 × 2^(–127) d. –0.25 × 2^(–126 ) e. None of the above 2) Which of following recursive C++ functions correctly computes a[0]+a[1]+...+a[n-1] (where n is the size of array a) ? Question options: int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n] : a[0]; } int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n-1] : a[0]; } int sum(int n, int a[] ){ return sum(n-1, a) + a[n-1] ; } int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n] : a[0]; } int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n-1] : a[0]; }
1) For IEEE 754 single precision floating point numbers, if X is a negative denormalized floating point number with mantisa 010 0000 0000 0000 0000 0000, what is the decimal value of X? Question options: a. –1.25 × 2^(–126 ) b. –1.25 × 2^(–127 ) c. –0.25 × 2^(–127) d. –0.25 × 2^(–126 ) e. None of the above 2) Which of following recursive C++ functions correctly computes a[0]+a[1]+...+a[n-1] (where n is the size of array a) ? Question options: int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n] : a[0]; } int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n-1] : a[0]; } int sum(int n, int a[] ){ return sum(n-1, a) + a[n-1] ; } int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n] : a[0]; } int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n-1] : a[0]; }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
1)
For IEEE 754 single precision floating point numbers, if X is a negative denormalized floating point number with mantisa 010 0000 0000 0000 0000 0000, what is the decimal value of X?
Question options:
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a. –1.25 × 2^(–126 )
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b. –1.25 × 2^(–127 )
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c. –0.25 × 2^(–127)
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d. –0.25 × 2^(–126 )
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e. None of the above
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2)
Which of following recursive C++ functions correctly computes a[0]+a[1]+...+a[n-1] (where n is the size of array a) ?
Question options:
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int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n] : a[0]; } |
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int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n-1] : a[0]; } |
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int sum(int n, int a[] ){ return sum(n-1, a) + a[n-1] ; } |
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int sum(int n, int a[] ){ return n>0? sum(n-1, a) + a[n] : a[0]; } |
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int sum(int n, int a[] ){ return n>0? sum(n-1) + a[n-1] : a[0]; } |
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