Using egrep and grep in linux

1. Using sentences.txt
   1. Find all sentences that have words where there are two vowels in a row.
   2. Find all sentences that contain punctuation marks other than periods.
   3. Find all sentences that contain punctuation marks, including periods, that are not at the end of the sentence.
   4. Find all sentences that contain at least three words.
   5. Find all sentences that contain exactly four words.
   6. Find all sentences that contain words in which the letters (upper or lower case) a, b, c, and d appear in that order somewhere in the words (not necessarily consecutively). This should, for instance, find “a bat can die”.

What sentences.txt contains:

Anything goes here.

Or not

When, why or how.

A bat can die

The dog never does.

Yikes! he proclaimed

A big can of doo doo is gone.

The zebra never yells at x-rays well unless it is proscribed.

Once upon a time.

Farther. Back down the road!

Yes, a time once did exist

Consider two functions
f (x; y) = (x10)2 + (y + 2)2; and
g(x; y) = (x ? 10)2 + (x ? y + 5)4
Please implement a basic gradient descent algorithm using python
Starting with (x; y) = (0; 0), and set up a xed learning rate = 0:5,
run the gradient descent algorithm for each function. Run for 10
iterations, and report both (x; y) and the function value at the end of
each iteration.
Adjust the , and nd out the fastest convergence (smallest function
value) after T steps (try T = 10 or 100).

Discuss how the use of certain IT systems or technologies could make working or schooling from home easier and effective in this Corona Virus era.

[ RACKET]

a) Write a recursive function (gen-list start end). This function will generate a list of consecutive integers, from start to end. If start > end then an empty list is generated.

For example: (gen-list 1 5) ---> (1 2 3 4 5)

b) write a recursive function pair-sum? that takes an integer sequence as generated by the gen-list function in exercise 4 above. This function tests whether any two adjacent values in the given list sum to the given val.

For example,

   (pair-sum? '(1 2 3) 3) ---> #t since 1+2=3. Similarly,

   (pair-sum? (gen-list 1 100) 1000) ---> #f since no two adjacent integers in the range 1 to 100 can sum to 1000.

You must use recursion, and not iteration. Please include explanation thanks.

Spring 2019 CMSC 140 Programming Project 4: Days Out

Project Specifications

Input for this project:

• the user must enter the number of employees in the company.
• the user must enter as integers for each employee:
  • the employee number (ID)
  • the number of days that employee missed during the past year.

Input Validation:

• Do not accept a number less than 1 for the number of employees.
• Do not accept a negative number for the days any employee missed.
• Be sure to print appropriate error messages for these items if the input is invalid.

Output: The program should display the following data:

• Each employee number (ID) and the number of days missed should be written to the report file named "employeeAbsences.txt".
• The average number of days a company's employees are absenting during the year should be written to the report file named "employeeAbsences.txt".

• Create a global variable of type ofstream for the output file. Use this variable to open the fileemployeeAbsences.txt in your program to write data to it. A global variable is defined above the main function and its scope is throughout the program.
• Create the following three functions that will be called by the main function:

1. A function called NumOfEmployees. This function asks the user for the number of employees in the company. This value should be returned as an int. The function accepts no arguments (No parameter/input).
2. A second function called TotDaysAbsent that accepts an arguments of type int for the number of employees in the company and returns the total of missed days as an int. This function should do the following:

• 1. Asks the user to enter the following information for each employee:
• The employee number (ID) (Assume the employee number is 4 digits or fewer, but don't validate it).
• The number of days that employee missed during the past year.
  2. Writes each employee number (ID) and the number of days missed to the output file (employeeAbsences.txt). ( Refer to Sample File Output )

3. A third function called AverageAbsent that calculates the average number of days absent.
   1. The function takes two arguments:

• the number of employees in the company
• the total number of days absent for all employees during the year.
  2. This function should return, as a double, the average number of days absent.
  3. This function does not perform screen or file output and does not ask the user for input.

Explain how Artificial Intelligence could be adopted in the lecture hall for IT101 to enable students have total concentration on the lecture and not to be distracted by anything else (such as putting down notes while the lecture is ongoing, etc.). Discuss, in detail, the components of such system(s) and how each component of such system(s) functions

In Java, how can I convert a string user input for example a student starts a uni degree in "Winter/2022", to a date type, and then once I have done that, add 3 years to that value, and changing the season, so for example Student Started: Winter/2022 and Student Finished: Summer/2025. Is there any possible way to do this?

Thank you.

Download the Unit 5 Programming Assignment When you're finished, upload the following to the Programming Assignment submission area: Upload the following for your Programming Assignment submission. Question.java TrueFalseQuestion.java MultipleChoiceQuestion.java Quiz.java A screenshot showing a dialog box asking a true/false question Your assignment will be graded by your peers using the following criteria. Does the submission include a file that defines the class "Quiz" with a main method? Does the submission include a file that defines the abstract class "Question" with instance method "check", class method "showResults", and abstract method "ask"? Does the submission include a file that defines the class "MultipleChoiceQuestion" as a subclass of "Question" with an implementation of "ask" method? Does the submission include a file that defines the class "TrueFalseQuestion" as a subclass of "Question" with an implementation of the "ask" method? Does the class "TrueFalseQuestion" implement the method "ask" to keep asking its question until it receives an answer of "f", "false", "n", "no", "t", "true", "y", or "yes" in any combination of upper and lower case? Does the class "TrueFalseQuestion" implement the method "ask" to return only "TRUE" or "FALSE"? Does the class "TrueFalseQuestion" have a constructor that initializes the question and correct answer using its parameters, where the correct answer is initialized to only "TRUE" or "FALSE"? Does the main method in class "Quiz" use the "check" method with both "MultipleChoiceQuestion" and "TrueFalseQuestion" objects? Does the main method in class "Quiz" report correct results using the "showResults" method from class "Question"?

In C Write a program that

1. prompts the user to enter a Fahrenheit temperature
2. calculate the corresponding temperature in Celsius and print it
3. prompt the user if they want to do another temperature conversion
4. if the user enters y, repeat 1), 2) and 3)
5. if the user enters n, then print Bye and exit the program
6. if the user enters any other character, ask the user to enter y or n only

Note : c = (5.0/9.0)*(f-32.0)

Sample output

Enter temperature in deg F

50

You entered 50 def F. The corresponding temp in deg C is 10.00

Another temperature conversion?

Enter y or n please

y

Enter temperature in deg F

60

You entered 60 def F. The corresponding temp in deg C is 15.56

Another temperature conversion?

Enter y or n please

a

Enter y or n please

#

Enter y or n please

y

Enter temperature in deg F

70

You entered 70 def F. The corresponding temp in deg C is 21.11

Another temperature conversion?

Enter y or n please

n

Bye

Problem 3

Write a program that

1. prompts the user to enter a Fahrenheit temperature
2. calculate the corresponding temperature in Celsius and print it
3. prompt the user if they want to do another temperature conversion
4. if the user enters y, repeat 1), 2) and 3)
5. if the user enters n, then print Bye and exit the program
6. if the user enters any other character, ask the user to enter y or n only

Note : c = (5.0/9.0)*(f-32.0)

Sample output

Enter temperature in deg F

50

You entered 50 def F. The corresponding temp in deg C is 10.00

Another temperature conversion?

Enter y or n please

y

Enter temperature in deg F

60

You entered 60 def F. The corresponding temp in deg C is 15.56

Another temperature conversion?

Enter y or n please

a

Enter y or n please

#

Enter y or n please

y

Enter temperature in deg F

70

You entered 70 def F. The corresponding temp in deg C is 21.11

Another temperature conversion?

Enter y or n please

n

Bye

1) Describe a real-world situation for which a for loop would provie an appropriate simulation.

2) Describe a real-world situation for which a while loop would be more appropriate.

3) How could a while loop be coded to run forever?

4) How could a for loop be coded to run forever?

5) Describe a testing strategy for ensuring that your loop conditions are properly coded.

*These are conceptual questions, I don't need any actual code. Please give me conceptual answers NOT CODE!

Prove  {0ⁿ1ⁿ, n≥0} is a computable language

a)Adoubledata field(private)named realfor real part of a complex number.

b)Adoubledata field(private)named imgfor imaginarypart of a complex number.

c)A no-arg constructor that creates a default complex number with real 0and img 0.

d)Auser-defined constructorthat creates a complex number with given 2 numbers.

e)The accessor and mutator functions for realand img.

f)A constant function named addition(Complex&comp1, Complex&comp2) that returns the sum of two givencomplex numbers.

g)Aconstantfunction named subtraction(Complex&comp1, Complex&comp2) that returns the subtractionof two givencomplex numbers.

h)A constant function named multiplication(Complex&comp1, Complex&comp2) that returns the multiplicationof two givencomplex numbers.

i)Write a test program that creates aComplexobject with no-arg constructor.Then, set -4.2 and 3.1to real and imaginary parts of the complex number, respectively.

j)Create another Complexobject using the user-defined constructor.

k)Testaddition, subtractionand multiplication functions using thesetwoComplex objects.