[Ben Wiedermann] Using the technique we use in Example 3.8 to describe addition, describe exponentiation as a language recognition problem.
What will be an ideal response?
Problem: Given two nonnegative numbers n and m, compute nm.
Encoding of the problem: We transform the problem of computing nm into the problem of checking whether a third number p is the result of raising n to the m power. We can use the same encoding we used in Example 3.5.
The language to be decided: INTEGEREXP =
{w of the form:
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Here is a complete function that purports to return one of the roots of a quadratic given suitable parameters. It looks good, but fails to compile. Why?
``` //returns one of the roots of the quadratic equation //a*x*x + b*x + c = 0 a!= 0 double root1 (double a, double b, double c) { return (-b + sqrt(b*b-4*a*c))/(2*a); ```
DNS is a protocol that automatically provides a computer with its IP address configuration.
Answer the following statement true (T) or false (F)
In addition to drivers, provide examples of specific software most digitizers require to use their advanced functions.
What will be an ideal response?
Identify the letter of the choice that best matches the phrase or definition.
A. A narrow recording band that forms a full circle on the surface of the disk B. Optical disc whose quality far surpasses that of CDs C. The number of bits in an area on a storage medium D. A group of two or more integrated hard disks E. Administrators can quickly add storage to their network with this kind of device F. A hard disk that uses parallel signals to transfer data, instructions, and information G. A type of SCSI that uses serial signals to transfer data, instructions, and information H. A storage device that typically uses flash memory to store data, instructions, and information I. Also called a thumb drive J. Sometimes used in descriptions of a storage device's capabilities, instead of access time K. Technology that uses radio signals to communicate with a tag placed in or attached to an object, animal, or a person L. The operating system marks bad ones as unusable when a disk is formatted M. Its reliability tends to diminish with each successive rewrite N. Optical disc that users can read but not write on or erase O. Optical disc on which users can write once, but not erase, their own items