Write commend to each line for explaining the lineWith the code guarantee that all command window, figuresand workspace is clearLet t be a vector which contains time values from 0 to 20swith a step size of 0.5 define the vectorLet a be a sin(t) function define the variable and plot thefunction with respect to tAdd x label, ylabel, title and legend to your figure and saveas fig file.Let b be a sin(t+p) function, define phase difference for30°, 45°,60°,90°. and plot all the functions with respect tot in a single fig file with different color lines, curve typesLet c be a cos (t+p) function having a phase difference of30°,45⁰,60,90°. Create a 2by 2 figure and plot thegraphs of each 4 case into a subplot Add x label, ylabel,title and legend to each

for explaining With the code guarantee that all command window, figur nd workspace is clear to eac et t be a vector which contains time values from 0 to 20 with a step size of 0.5 define the vector et a be a sin(t) function define the variable and plot the unction with respect to t Add x label, ylabel, title and legend to your figure and sa s fig file. et h he a sin(++) function define phase difference o fo

for explaining With the code guarantee that all command window, figur nd workspace is clear to eac et t be a vector which contains time values from 0 to 20 with a step size of 0.5 define the vector et a be a sin(t) function define the variable and plot the unction with respect to t Add x label, ylabel, title and legend to your figure and sa s fig file. et h he a sin(++) function define phase difference o fo

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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createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles. 2. Reads the profiles from the input file. 3. For each person in the file 1. creates a Profile object with the information from file (see input file format below). 2. insert the newly created profile into the next position in the database array (instance variable).
Python Create a text file named “Books.txt”.Open the text file and add the name of at least two books.In your Python3 code file, create a function that will loop through and display a menuwith options to Display, Add, Exit. It will end once the user selects the option for exit.Create another function that will accept the user’s choice with the outcome for eachoption.Display – read the file and output each lineAdd – prompt the user for a book name and append it to the file. Exit – close the file and exit the loopRun the code to display your output.
JAVASCRIPT 9. populateSelectMenu a. Depends on the createSelectOptions function we created b. Receives the users JSON data as a parameter c. Selects the #selectMenu element by id d. Passes the users JSON data to createSelectOptions() e. Receives an array of option elements from createSelectOptions f. Loops through the options elements and appends each option element to the select menu g. Return the selectMenu element NOTE: The next functions use Async / Await to request data from an API. We cover this in Week 13. I do not recommend proceeding beyond this point until you have completed the learning module for Week 13. */ function populateSelectMenu(){ }
python coding using pathlib, Separate the following path 'C:\Users\Barney\files\letters.txt' into the drive, the parent, file name, and the suffix (you can assign each to a variable or display on the screen from the .py (not the interactive shell))
A bucket list is a collection of goals, dreams, and aspirations that you would like to accomplish within your lifetime. The purpose of this assignment is to develop a program that allows the user to manage their personal bucket list and save it to an XML file bucketlist.xml. For full credit, run the program and create a file with at least three entry elements. Submit a document containing a copy of the source file, a screenshot of the program in action, and the contents of the XML file. File Structure Below is the basic structure (i.e. schema) for the XML file. You may add additional elements. <bucketList> <entry> <rank></rank> <description></description> <status></status> </entry> </bucketList> Note: Before running the program, manually create an XML input file with at least one entry element that contains values in each child element. GUI Requirements At a minimum, your GUI must meet the below requirements. No minimize…
Suppose a csv file contains three comma-separated values (strings) on each line (see the leftcolumn of the example table below). Assume, each line of values are, respectively, thewidth, height, and depth of a box. Write a program called box.py and add thefollowing functions to this program.• read_file() takes a csv filename as a parameter that contains the widths, heights, anddepths of all boxes. This function must read the content of the file, store these values ina 2-D list as shown in the right column of the example table below, and return this list.All strings must be converted to integers before they are stored in the list. Example:csv data 2-D list[[15, 6, 3],[3, 7, 4],[6, 9, 3],[15, 6, 11],[6, 5, 5],[13, 10, 9],[9, 10, 3],[14, 5, 4],[4, 6, 11],[12, 10, 9]]• Add another function called max_volume() to this program that takes this 2-D list as aninput parameter. Each item in that list contains 3 integers representing the dimensions ofa box (i.e., width, height, depth). This…
Add code to the function named worldLoadAll that takes a World and a string as parameters. The string represents the game name. Declare a string variable for the name of the node data file. Calculate a value for this file name by adding "_grid.txt" to the game name. Then declare another string variable for the name of the text data file. Calculate a value for this second file name by adding "_text.txt" to the game name. For example, if the game name is "blizzard" then the two file names should be "blizzard_grid.txt" and "blizzard_text.txt". At this stage, use the first of these filename to call the worldLoadNodes function. In Part C, you will use the second of these filenames to call the worldLoadDescriptions function.
Vector Creation (creating equally spaced vectors) Write a script with commands to create the following vectors and assign to the indicated variable names. ■ Create an evenly-spaced row vector A with elements starting at 0 and ending at 50 with increments of 0.5. ▪ Create a row vector B with 80 evenly-spaced elements starting at 0 and ending at л/2. Your code should not include the following MATLAB functions or keywords: for, while. Hint: one line of your solution should start with A = and the other line of your solution should start with B =
Using C# in Microsoft Visual Studio create an application that grades the written portion of the driver’s license exam. The exam has 20 multiple-choice questions. (The correct answers are provided in the screenshot.) the program should store these correct answers in an array. The program should read the student’s answers for each of the 20 questions from a text file and store the answers in another array. (Create your own text file to test the application.) After the student’s answers have been read from the file, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam.) It should then display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the question numbers of the incorrectly answered questions.
You have more flexibility to implement your own function names and logic in these programs. The data files you need for this assignment can obtained from:Right-click and "Save Link As..." HUGO_genes.txt (Links to an external site.) chr21_genes.txt (Links to an external site.) Create an output directory inside your assignment4 directory called "OUTPUT" for result files, so that they will not mix with your programs. Output from your programs will be here! Your program must implement command line options for the infiles it must open, but for testing purposes it should run by default, so if no command line option is passed at the command line, the program will still run. This will help in the grading of your program. Create a Python Module called called my_io.py - You can use the same code from assignment 3's solution. Put this my_io.py Module in a subdirectory named assignment4 inside your assignment4 top-level directory (see the tree below, and see Lecture 7 on how to implement a…
add a menu that you design which includes these features: Ability for a user to input a set of grades into a vector. Make sure only integers between 0 and 100 are used. Cout the vector onto the screen with grades separated by spaces and starting with, "Original user vector: " Output the average grade. Ability to sort the user-inputted vector from low to high or high to low. Cout the new sorted vector onto the screen with grades separated by spaces and starting with, "Grades sorted vector: " Using the binary search method (not the linear search method), add the ability to find a user selected grade and change it.
Need help with this Create a function named FahrenheitToCelsius() containing a single parameter named degree. Insert a statement that returns the value of degree minus 32 and then divided by 1.8. Create a function named CelsiusToFahrenheit() containing a single parameter named degree. Insert a statement that returns the value of degree multiplied by 1.8 plus 32. Add an onchange event handler to the element with the id “cValue”. Attach an anonymous function to the event handler and within the anonymous function do the following: Declare a variable named cDegree equal to the value of the element with the id “cValue”. Set the value of the element with the id “fValue” to the value returned by the CelsiusToFarenheit() function using cDegree as the parameter value. Add an onchange event handler to the element with the id “fValue”. Attach an anonymous function to the event handler and within the anonymous function do the following: Declare a variable named fDegree equal to the value…