II. Assume we are running code on a 10-bit machine using two's complement arithmetic for signed integers. Fill in the empty boxes in the table below. The following definitions are used in the table: int y = -9; unsigned z = y; Note: You need not fill in entries marked with Only accepted format for binary representation (use 10-bits): 0000000000, 1111111111 Only accepted format for hexadecimal representation: 2FD, 1EF, 3FF Expression Decimal Binary Hexadecimal Zero 0 -5 Y Z y-z -Tmax -Tmin Tmax +1 0000010010

II. Assume we are running code on a 10-bit machine using two's complement arithmetic for signed integers. Fill in the empty boxes in the table below. The following definitions are used in the table: int y = -9; unsigned z = y; Note: You need not fill in entries marked with Only accepted format for binary representation (use 10-bits): 0000000000, 1111111111 Only accepted format for hexadecimal representation: 2FD, 1EF, 3FF Expression Decimal Binary Hexadecimal Zero 0 -5 Y Z y-z -Tmax -Tmin Tmax +1 0000010010

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

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scan (UPCS) verifies the 12-digit code scanned by comparing the code's last digit (called a check digit ) to its own computation of the check digit from the first 11 digits as follows: I. [step 1]Calculate the sum of the digits in the odd-numbered positions eleventh digits) and multiply this sum by 3. (the first, third, II. [step 2]Calculate the sum of the digits in the even-numbered positions (the second, fourth, ., tenth digits) and add this to the previous result (result of stepl). III. [step 3]If the last digit of the result from step 2 is 0, then o is the check digit. Otherwise, subtract the last digit from 10 to calculate the check digit. IV. [step 4]If the check digit matches the final digit of the 12-digit UPC, the UPC is assumed correct. 1. Write main function that prompts the user to enter the 12 digits of a barcode. The program should store the digits in an integer array. 2. Write a "check" function to calculate the check digit, and compare it to the final barcode digit. If…
1a) Give the values of the following: M[i,i+1] for i=1,...,5 M[i,i+2] for i=1,...,4 M[i,i+3] for i=1,...,3 f M[1,5] and M[2,6] M[1,6]. b) How do you place the parentheses to compute A by this number of scalar multiplications? For multiplication from left to right write ((((A1A2)A3)A4)A5)A6. c) How many ways to place the paratheses to compute A are there that achieve the minimum number of scalar multiplications?
#Solve it with C programing Suppose, you are working as a Data Entry Operator in a company. You have created a dataset that contains the names of N employees. Then your supervisor wants you to look for a particular employee by name. (Consider, every name in the data set is unique).Now your task is to write a program which will help you to find out the name which your supervisor is looking for.If found then print a message "Matched" otherwise print "Not Matched". (N.B: Without quotation) The first line of input will take an integer (N) which indicates the number of names in the dataset. Then the second line will take N space-separated strings. The third line of input will take another string as search value. Sample input:5rabbe sharif shazzad polash tutulsharif Sample output:Matched Sample input:4jahid nishat rasel shakibmunna Sample output:Not Matched
a) What is "Approximation Error" in floating-point representation? Approximation Error - Since in floating point representation we can not represent all real numbers so there occurs an error.It is difficult to represent some decimal numbers in binary form. b) Why is it happening? Floating point Approximation error occur because it uses fixed no. of bits to represent decimal numbers. It is difficult to represent real numbers with the help of fixed bits of binary numbers. Also some decimal numbers are difficult to represent in binary form. c) How can we minimize it? We can minimise it by- 1.Changing radix 2.Adding numbers of different magnitude value. 3.overflow 4. underflow 5.Subtracting numbers of same magnitude value. Dont use answers from other websites please! Please type your answer not picture d) How can the character codes be a solution for this?
[Python (py3)] The code below is for matrix operations (addition, multiplication, scalar multiplication and transposition). Please annotate what happens in EACH line so that I can fully understand the code below. Some lines are already annotated. Please annotate EACH line. Do not just copy the code below and take it as the answer without modifying anything. I already encountered such case many times before. Sample input 1:add2 353 -4 17 31 22 3 67 2 2-34 6 3 Sample output 1:120 -2 3-27 37 5 ________________________________________________________________________________ Sample input 2:scalMultiply2 253 -47 312Sample output 2:106 -814 62 _______________________________________________________________________Sample input 3:multiply3 3 34 10 37 8 346 2 123 21 23 45 6 Sample output 3:79 126201 25072 92_______________________________________________________________________Sample input 4:transpose3 334 10 37 8 346 2 12Sample output 4:34 7 610 8 2 3 34 12…
Code the following.
This exercise is to write a Decimal to Hex function using BYTE operations. You can use a List, Dictionary or Tuple for your Hex_Map as shown below, but it's not necessary to use one. It is necessary to use Byte operations to convert the decimal to hex. The bitwise operations are also available as __dunders__. Write a function to convert a integer to hexidecimal. Do not use the Python hex function (i.e. hexnumber = hex(number)) to convert the number, instead write your own unique version (i.e. MYHEX: hexnumber = MYHEX(number)). Your function should not use any Python functions like hex, dec, oct, bin or any other Python functions or modules. Functions, like Python ORD, can be used to convert a string to a integer. The input number range is 0 to 1024. def MYHEX(number): hex_map = {10: 'A', 11: 'B', 12: 'C', 13: 'D', 14: 'E', 15: 'F'} result = '' while number: digit = number % 16 if digit > 9: result = hex_map[digit] + result else:…
identify 8 Errors in the following code give a reason why .
IN C PROGRAMMING LANGUAGE AND COMMENT EVERY LINE SO I COULD UNDERSTAND EVERY STEP PLEASE, Write a program that implements the binary search for a set of integers stored in a data file. (Note that the data set in sorted in an ascending order).
▼ Part A - The effect of an arithmetic shift on signed numbers Let's look at see what happens to signed numbers during a shift operation. As with most problems with number representations, errors can be intermittent. Sometimes the code will work as expected, and other times it will behave in a manner that seems to be totally arbitrary. Consider the following code fragment that makes use of the fact that shifting a value left by one place multiplies the number by 2. By passing in the number to be multiplied and the power of 2 to multiply it by (for example 4 = 22) the correct answer should be passed back from the function after the results are printed for the user to examine. signed int mult_2_to_n (signed int num, int n) { signed int result; result = num << n; printf("%d multiplied by 2^%d %d\n", num, n, result); return result; } Using a signed number as the manipulated integer may cause an error in some cases. Several approaches may be used to fix the problem. Which solutions below…
7. We usually write numbers in decimal form (or base 10), meaning numbers are composed using 10 different "digits" {0,1,.9). Sometimes though it is useful to write numbers in hexadecimal or base 16. Now there are 16 distinct digits that can be used to form numbers: {0,1,..,9,A,B,C,D,E,F}. So, for example, a 3 digit hexadecimal number might be 3B8. (a) How many 2-digit hexadecimals are there in which the first digit is E or F? Explain your answer in terms of the additive principle (using either events or sets). (b) Explain why your answer to the previous part is correct in terms of the multiplicative principle (using either events or sets). Why do both the additive and multiplicative principles give you the same answer? (c) How many 3-digit hexadecimals start with a letter (A-F) and end with a numeral (0-9)? Explain. (d) How many 3-digit hexadecimals start with a letter (A-F) or end with a numeral (0-9) (or both)? Explain.
Explain the following code