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The Contact List Manager is a Python program designed to help users manage their contacts efficiently. The program allows users to perform various operations such as viewing, adding, updating, and searching for contacts stored in a text file. The program reads contact information from a file named "contacts.txt," which contains names and phone numbers separated by commas. The interface is user-friendly and menu-driven, making it easy for users to navigate and perform tasks without confusion.
Design a simple Python program to manage a contact list using a text or CSV file. The program should allow users to add, view and update the contacts. Users can enter a name and phone number while the program validates input to prevent empty names, incorrect phone numbers, and duplicate entries. Contacts should be displayed in a structured format, and users should be able to search for a contact by name. The interface should be userfriendly.
Prince Mohammad Bin Fahd University
The implementation of a C# program, which focuses on using classes to generate and manipulate objects, is detailed in this report. Constructors, methods, and an override ToString function have to be added to a Student class based on a UML model that was given. As part of the software, it was required to create objects, set their attributes, compare their GPAs, and show their data.
a) Write a C# code for the following UML class: (6 marks) Student - id : String - name : String - GPA : double + Student (id) + Student (id, name) + setName (name: String) + setGPA (value: double) + getGPA( ): double + getName ( ) : String + isHigher (av: double) : Boolean + ToString ( ): String b) Write the statement(s) needed for the following questions (total 6 marks): a) (2 marks) Create two objects named (maleStudent) and (femaleStudent) using different constructors with ant values you select. b) (0.5 mark) Set any name for the object created by the first constructor. c) (0.5 mark) Set the GPA of both objects for any values. d) (1 mark) Call isHigher method and print appropriate message. e) (0.5 mark) Display the GPA of the femaleStudent. f) (0.5 mark) Display the name of the maleStudent. g) ( 1 mark) Display the information (fields) of one of the objects explicitly and the other object implicitly.
Question 1 (20 pts)The passive mechanical behavior of skeletal muscle is modeled using a linear spring $k_1$ in series with a parallel linear spring-dashpot combination $k_2, b$.System Setup: One end of the muscle is fixed; the displacement of the other end is $x$.Definitions: If $x_1$ is the change in length of $k_1$, the forces are $F_1, F_2,$ and $F_b$, where $x_2 = x - x_1$.(a) If length $x$ is stepped and held from $0$ to $X_0$ at $t = 0$, solve for the applied force $F$.(b) If force $F$ is suddenly stepped and held from $0$ to $F_m$ at $t = 0$, solve for the change in length $x$.Question 2 (30 pts)A two-compartment model of glucose-insulin kinetics. $I_p(t)$ is intravenous insulin, $I$ is insulin in a remote compartment, and $G$ is glucose concentration in plasma.+1Model Parameters:| Parameter | Value | Parameter | Value || :--- | :--- | :--- | :--- || $k_1$ | $0.015 \text{ min}^{-1}$ | $k_5$ | $0.035 \text{ min}^{-1}$ || $k_2$ | $1 \text{ min}^{-1}$ | $k_6$ | $0.02 \text{ mM}^{-1}\text{min}^{-1}$ || $k_3$ | $0.09 \text{ min}^{-1}$ | $B_0$ | $0.5 \text{ mM min}^{-1}$ || $k_4$ | $0.01 \text{ mM}^{-1}\text{min}^{-1}$ | | |Input: $I_p(t) = 200 \text{ mM}$ for $0 \le t < 0.1 \text{ min}$, and $0$ otherwise. Initial Conditions: At $t = 0$, $I = 0$ and $G = 10 \text{ mM}$.Task: Solve for $I$ and $G$ using MATLAB for $0 \le t \le 60 \text{ min}$.Question 3 (40 pts)A three-element model of active cardiac muscle contraction. Total tension is $T = T_p + T_s$.+1Governing Equations $T_p = \beta(e^{\alpha(L-L_0)} - 1)$$T_s = \beta(e^{\alpha L_s} - 1)$$\frac{dL_c}{dt} = \frac{a[T_s - S_0f(t)]}{T_s + \gamma S_0}$Activation Function:$f(t) = \sin(\frac{\pi}{2}[\frac{t+t_0}{t_{ip}+t_0}])$ for $0 \le t < 2t_{ip} + t_0$, else $0$.Constants17:$L_0 = 10 \text{ mm}$, $\alpha = 15 \text{ mm}^{-1}$, $\beta = 5 \text{ mN}$, $S_0 = 4 \text{ mN}$, $\gamma = 0.45$, $t_0 = 0.05 \text{ s}$, $t_{ip} = 0.2 \text{ s}$.(a) Use Python to solve/plot $T$ vs time for an isometric contraction ($L = L_0$).(b) Solve/plot length $L$ vs time for an isotonic contraction ($T = 0$).Question 4 (10 pts)A left ventricle is modeled as a spherical shell with inner radius $A$ and outer radius $B$. It expands to new radii $a$ and $b$. Assuming the myocardium is incompressible, find $b$ as a function of $a, A,$ and $B$
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This assignment helps understand Processing and plotting different datasets using Python.
Question 1: In this question, you will use the "Titanic" dataset. This dataset contains information on 891 passengers, with the following columns: Column Description sex Gender (“male” or “female”) age Age in years (float; some missing) sibsp Number of siblings/spouses aboard parch Number of parents/children aboard fare Ticket fare in British pounds embarked Port of embarkation (“C” = Cherbourg; “Q” = Queenstown; “S” = Southampton) class Passenger class (“First”, “Second”, or “Third”) alone Was the passenger travelling alone (True or False) survived Survival indicator (0 = No, 1 = Yes) Write a Python program to perform the following tasks/answer the following questions: 1. Load the dataset into a Pandas DataFrame and display the first five rows. 2. Plot a pie chart showing the percentage of passengers who embarked at each port. 3. Create a barplot showing the number of passengers travelling in each class. 4. Create a scatter plot of age vs. fare, colored by class. Based on this plot, state which passenger class generally paid the highest fares. 5. Calculate and print the mean and five-number summary of fare using the describe() command. 6. Create a box plot of fare and identify any outliers. 7. Plot a histogram of age and describe its distribution shape. 8. Filter the female passengers data and create a bar plot of their class counts. 9. Filter the male passengers data and create a bar plot of their class counts. Compare the two distributions. 10. Generate a heatmap of correlations among the numeric features of the data frame (age, fare, sibsp, parch); identify the strongest and weakest correlations. Question 2: In this question, you will use the "Penguins" dataset. The dataset contains measurements for penguin specimens from three islands in Antarctica. Each row represents one penguin. The data provided include: Column Description species Penguin species (Adelie, Chinstrap, Gentoo) Island Island where the penguin was observed (Torgersen, Biscoe, Dream) bill_length_mm Bill length in millimeters (float) bill_depth_mm Bill depth in millimeters (float) flipper_length_mm Flipper length in millimeters (float) body_mass_g Body mass in grams (float) sex Sex of the penguin (male, female) Write a Python program to perform the following tasks/answer the following questions: 1. Load the dataset from penguins.csv into a Pandas DataFrame and display the first five rows. 2. Use the command info() to print a description of all columns. How many penguins are included in this data frame? 3. Construct a pie chart showing the proportion of each penguin specie. 4. Build a bar plot of penguin counts by island. 5. Calculate and print the mean and five-number summary of bill_length_mm using describe(). 6. Construct a box plot of flipper_length_mm. From the box plot, identify if there are any outliers. 7. Plot a histogram of body_mass_g. Based on this plot, describe the distribution of the penguins body mass. 8. Filter the data frame to "Adelie" penguins and plot a histogram of their body_mass_g. 9. Filter the DataFrame to "Gentoo" penguins and plot a histogram of their body_mass_g. Compare with the histogram in part (8) and state which specie tend to be heavier. 10. Generate a heatmap of the correlation matrix among all numeric variables (bill_length_mm, bill_depth_mm, flipper_length_mm, body_mass_g); from the heatmap, identify the strongest correlation and the two weakest correlations.
Question 1: An energy consultancy collected data on 10 countries, recording population (in millions), installed renewable capacity (in GW), and the number of solar power projects completed in the last five years: Country Population (Millions) Renewable Capacity (GW) Solar Projects Completed Germany 83 120 350 China 1441 900 1200 United States 331 280 850 India 1380 150 600 Brazil 213 140 420 Spain 47 55 310 Australia 26 60 540 Canada 38 65 200 France 67 70 330 United Arab Emirates 10 15 180 Write a python program to 1. Create a Python Dictionary: Construct a Python dictionary called Countries with keys: o "Country" o "Population_millions" o "Renewable_Capacity_GW" o "Solar_Projects_Completed". 2. Build a Pandas DataFrame: Use this dictionary to create a Pandas DataFrame named DF_Countries and print it. 3. Display Initial Data: Print the first 5 rows of the DataFrame. 4. Create new columns for additional metrics: o Add a column "Capacity_per_Capita_MW" = (Renewable_Capacity_GW × 1,000) ÷ Population_millions. o Add a column "Projects_per_Million" = Solar_Projects_Completed ÷ Population_millions. o Print the header of the augmented DataFrame. 5. Perform data analysis: o Identify and print countries with Capacity_per_Capita_MW > 1,500 and Projects_per_Million > 10. o Compute and print the average Solar_Projects_Completed for countries with Renewable_Capacity_GW > 100 GW. Question 2: An education research team compiled exam scores for 20 students across 4 subjects. The data is provided in students_scores.xlsx includes o Student: This includes the student first name. o Section: This includes the student section (A, B, C or D). o Math: This is the student’s grade in Math (integer). o Physics: This is the student’s grade in Physics (integer). o Chemistry: This is the student’s grade in Chemistry (integer). o English: This is the student’s grade in English (integer). Write a python program to 1. Read the data from the excel file into a Pandas DataFrame called StudentsScores. 2. Display the first 5 rows of the DataFrame. 3. Print a summary of the DataFrame using the describe function. The summary should include all types of data. 4. Use the shape attribute of the DataFrame to determine and print its numbers of rows and columns. 5. Conduct data analysis: o Count Section A students: determine and print how many students belong to Section A. o Lowest Math score: identify the student with the lowest Math score and print that student’s data. o Highest English score: identify the student with the highest English score and print that student’s data. o Lowest total score: compute each student’s total across all four subjects, then identify the student with the lowest total, and print that student’s data.
You work in the shipping department for a book printer. At this printing shop, all the books are the same size. Specifically, the covers are 10 inches (length) by 8 inches (width). The thickness of the books is determined by the number of pages, which are .006 inches each. Also, the front and back covers add 1/4 inch each to the thickness of each book (1/2-inch total). Given these dimensions and additional information given by the user about the order, you are responsible for determining the packaging for orders that go out to bookstores. Note, all measurements should be in inches, unless otherwise specified. NOTE: Text must be exact. This includes capital letters, white-space, and punctuation. Please see the example at the end of this document. Also, consider the data types for each calculated result. 1) Prompt the user for the following pieces of information about a particular order: a. How many book copies in the order? b. How many pages in the book? c. What is the length of the shipping box? d. What is the width of the shipping box? e. What is the height of the shipping box? How many books in the book order? How many pages in the book? What is the length of the shipping box? What is the width of the shipping box? What is the height of the shipping box? 2) Calculate and display the volume of the shipping boxes, rounded to the nearest whole inch. The volume of the shipping boxes is __ cubic inches. 3) Calculate and display the thickness of each copy of the book, rounded to the nearest tenth. Each book is ___ inches thick. 4) Assume that the books must be stacked so that the length of the books is aligned with the length of the box and the width of the books is aligned with the width of the box. The box and the books are stacked so that their thickness corresponds to the height of the box. (This makes the task easier.) ___ books will fit in each box. To determine how many books can be packed in each box, first determine: a- How many books by length fit in a box. b- How many books by width fit in a box. c- How many books can be stacked in a box. NOTE: Only the number of books in a box is displayed to the screen. 5) Determine how many full boxes of books will be shipped and how many additional books are left over for one additional box. (Assume that there will be additional books; Do not worry about having 0 (zero) books left over.) There will be ___ full boxes and ___ books for an additional box. 6) Calculate and display the empty space (volume) in this order. (NOTE: This means that there will likely be space in the full boxes, and a different amount of empty space in the partially filled box!) The extra volume in all the boxes totals _____ cubic inches. Testing your code: When you run your program, the black text below is the prompts from the program. The blue is the input values from a user. The test cases in GradeScope will run your code with different inputs (blue) and check the results that your program generates. How many books in the book order?500 How many pages in the book?350 What is the length of the shipping box?25 What is the width of the shipping box?25 What is the height of the shipping box?30 The volume of the shipping boxes is 18750.0 cubic inches. Each book is 2.6 inches thick. 66 books will fit in each box. There will be 7 full boxes and 38 books for an additional box. The extra volume in all the boxes totals 46000.0 cubic inches. Assumptions: In computer science, exact formatting of input/output is like putting on socks with shoes, while people might not do it 100% of the time in their personal life, it is extremely unusual not to do it in a professional setting. Therefore, you will need to format your input/output exactly like the samples provided. As we are just starting to program, and don't even have if-else statements at our disposal, we will assume many things to make the project easier, though it makes the project slightly more artificial. You may assume that the user will always enter a value of an appropriate data type. Restrictions: Allowed: • All arithmetic operators: +, -, *, /, %, //, **, = • The following data types and their casting functions: int, float, string • Any Escape Sequence • These functions: input(), print(), round(), min() Prohibited: • You may not import other modules (like math) or write your own modules • You may not use string formatting operations and related functionality • You may not create your own functions (do it the long way for this project) • No branching (if statements), or loops (for/while), or any other feature we haven’t yet covered in class • Do not pre-calculate values on paper and then use the literal calculated price value in code. Do all the calculations in code. In other words, no hard coding. Testing Your Code The tester for this assignment expects exact matching to pass a test case. If you're getting the right numbers but failing test cases, check your formatting (issues, capitalization, spelling, etc) You cac to see the exact tests we'll use when we grade your code, so you might as well get them all correct before turning in your work! No surprises there. One note, tests.txt, the OUTPUT section of the tests only includes what the program is supposed to print and does not include the characters that a user would be typing during the interaction (including when the user hits enter for a newline). This makes the output look a bit weird, but the testing file is correct. To test your code with the provided tester, first make sure that you have downloaded the files "tester1.py" and "tests.txt" into the same folder as your assignment code. Then, from that directory, run the following command using your command-line interface: > python3 tester1.py your_filename_PA1.py ++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++ passed 9/9 tests. NOTE For Windows users: Instead of python3, use py or python. If you pass all the tests, you will see the above contents. If you don't pass a test, you will be informed of where the mismatch in your output is, and you can figure out from there what needs to be fixed. Hints to Pass the Tester: Even if your math and your math output is correct, your program must have the exact spelling and formatting as the examples above for your code to pass the tester. Be sure to use the round() function, round(data, 2)as needed.
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