MATLAB Basics Quiz - 10th Class
45 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the maximum number of characters allowed for a variable name in MATLAB for this class?

  • 50 characters
  • 20 characters
  • 16 characters
  • 33 characters (correct)

    • What will 'ans' represent if no variable is specified in a MATLAB operation?

  • Default variable name (correct)
  • Function output
  • An error message
  • Special operation variable

    • Which command will display the value of pi with 16 digits?

  • format scale
  • format short
  • format long (correct)
  • format bank

    • How is a row vector defined in MATLAB?

    <p>By enclosing elements in square brackets</p> Signup and view all the answers

    Which of the following is NOT a reserved variable in MATLAB?

    <p>x</p> Signup and view all the answers

    What type of format should you leave when dealing with complex numbers in MATLAB?

    <p>short format</p> Signup and view all the answers

    How would you create a 3x3 matrix in MATLAB?

    <p>Use square brackets and separate rows with semicolons</p> Signup and view all the answers

    What is the correct MATLAB command to calculate the sine of 45 degrees?

    <p>sind(45)</p> Signup and view all the answers

    What is one of the intended learning outcomes of the course?

    <p>Ability to use Matlab for interactive computations</p> Signup and view all the answers

    Which of the following best describes the progression of teaching qualities mentioned?

    <p>Inspiring, demonstrating, explaining, telling</p> Signup and view all the answers

    What type of graphical presentations will students learn to generate?

    <p>One- and two-dimensional graphical presentations</p> Signup and view all the answers

    How will students manage data within Matlab during the course?

    <p>Through memory and file management practices</p> Signup and view all the answers

    What type of control structures will be covered in the course?

    <p>If-else, for, and while controls</p> Signup and view all the answers

    According to the course outline, which aspect of Matlab will students NOT learn about?

    <p>Creating web applications</p> Signup and view all the answers

    What does the quote by Martin Luther King Jr. suggest about progress?

    <p>Even small efforts contribute to progress</p> Signup and view all the answers

    What is emphasized as the role of a great teacher in the quotes provided?

    <p>Capacity to inspire students to inquire and think critically</p> Signup and view all the answers

    What is the correct syntax for plotting multiple functions in MATLAB?

    <p>plot(x, y, x, z)</p> Signup and view all the answers

    Which of the following defines the range of 'x' in the first example provided?

    <p>x = 0:0.01:5</p> Signup and view all the answers

    In the context of the example plot with sine and cosine functions, what command is used to add a legend?

    <p>legend('cos(x)','sin(x)')</p> Signup and view all the answers

    What is the title of the plot in Example_plot4?

    <p>Plot of v versus t</p> Signup and view all the answers

    Which line of code modifies the appearance of the plot with line style, color, marker size, and edge colors?

    <p>plot(t,v,'--dc','LineWidth',2,'MarkerSize',10,'MarkerEdgeColor','k','MarkerFaceColor','m')</p> Signup and view all the answers

    What does the size(F) command return when F is a matrix created with ones(1,3)?

    <p>The number of rows and columns in F</p> Signup and view all the answers

    What result is produced by the command A.^2 if A is defined as A = [1 2 3; 4 5 6; 7 8 9]?

    <p>A matrix showing the quadratic of each element in A</p> Signup and view all the answers

    What does the command tril(A) return when A is a matrix?

    <p>The lower triangular part of matrix A</p> Signup and view all the answers

    What is the effect of the command A(:,3) when A is a defined matrix?

    <p>It retrieves the third column of matrix A</p> Signup and view all the answers

    Which command would you use to obtain the diagonal elements of matrix A?

    <p>diag(A)</p> Signup and view all the answers

    What is the outcome of x = A when solving a system of linear equations?

    <p>It finds the solution vector x such that Ax = b</p> Signup and view all the answers

    How is matrix A augmented with identity matrix I in the command Aug=[A I]?

    <p>The identity matrix is concatenated to columns of A</p> Signup and view all the answers

    What does the command inv(A) compute?

    <p>The inverse of matrix A</p> Signup and view all the answers

    Which MATLAB command is used for creating a log/log plot?

    <p>loglog(x,y)</p> Signup and view all the answers

    What is the range of x when plotting the function f(x) = x^4 + √30x - 1 using fplot?

    <p>x = -2 to x = 2</p> Signup and view all the answers

    What does the command 'axis([0 pi 0 1])' control in a plot?

    <p>It controls the limits of both x-axis and y-axis.</p> Signup and view all the answers

    Which of the following statements is true about the semilogx function?

    <p>It plots y on a logarithmic scale and x on a linear scale.</p> Signup and view all the answers

    What is the output of the command 'grid on' in a MATLAB plot?

    <p>It adds a grid to the current plot.</p> Signup and view all the answers

    What type of plot does the command 'semilogy(x,y)' generate?

    <p>y is on a logarithmic scale and x is on a linear scale.</p> Signup and view all the answers

    What is a primary feature of the 'fplot' function in MATLAB?

    <p>It can plot anonymous functions over specified intervals.</p> Signup and view all the answers

    In plotting the polynomial equation f(x) = x^4 + √30x - 1, what does the term '√30x' represent?

    <p>It is a linear term multiplied by the square root of a constant.</p> Signup and view all the answers

    What does the command hold on accomplish in a plotting script?

    <p>Combines multiple plots on the same figure without erasing.</p> Signup and view all the answers

    Which line of code would correctly create two exponential plots on different figures?

    <p>figure(1), plot(x, exp(x)), figure(2), plot(x, exp(-x))</p> Signup and view all the answers

    What purpose does the subplot(m, n, p) command serve?

    <p>To break the graph window into an m-by-n matrix of small axes.</p> Signup and view all the answers

    How can you label the horizontal axis of a plot?

    <p>xlabel('Your Label Here')</p> Signup and view all the answers

    Which of the following commands will create a sine wave plot with circle markers?

    <p>plot(x1, y1, 'o')</p> Signup and view all the answers

    What function is used to add a grid to a plot?

    <p>grid()</p> Signup and view all the answers

    What does the plot(x, y1, 'b') command do in a plot?

    <p>Plots y1 against x in blue color.</p> Signup and view all the answers

    Which of the following equations best describes y1 in the context of a plotted function?

    <p>y1 = exp(x)</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course title: Computer Applications
    • Course codes: MSE 360/METE 352, MSE 262/METE 258
    • Instructor: Dr. K. Mensah-Darkwa
    • Teaching assistant: Miss Nancy Boye Mensah/Miss Christabel Wireko Arthur
    • Lesson 01: Introduction
    • Lesson 02: Overview of MATLAB
    • Lesson 03: Plotting

    Course Features

    • Presentation
    • Tutorials and Class discussions
    • In class Quizzes (Every week)
    • Assignments
    • Attendance
    • Assessments
      • Mid-Semester
      • End of Semester

    Class Policy

    • Attendance is mandatory and strictly enforced
    • Missing class requires a written reason within 2 days
    • Quizzes can be announced or unannounced
    • Late classwork, homework or assignments are not accepted

    Grade Evaluation

    • Continuous Assessment (30%)
      • Assignments + Quizzes + Group Project (20%)
      • Mid-Semester (10%)
      • Participation in Class (Bonus)
    • End of Semester (70%)
      • Section A (40%)
      • Section B (60%)

    MATLAB

    • MATLAB is a high-level language and interactive environment
    • Used to perform computationally intensive tasks faster than traditional languages like C, C++, and Fortran.
    • Created in the late 1970s by Cleve Moler
    • Developed by Mathworks, Inc.
    • Access MATLAB from the desktop or startup menu. Avoid multiple clicks.
    • MATLAB file extensions: -.m (function, script) -.txt (user-generated text file) -.fig (figure) -.mat (binary file for storing variables)

    MATLAB File Extensions

    • .m (MATLAB function, script)
    • .txt (MATLAB user-generated text file)
    • .fig (MATLAB figure)
    • .mat (MATLAB binary file for storing variables)

    MATLAB Commands

    • clc: Clears the command window
    • clear: Clears all current variables
    • who: Lists the variables
    • whos: Lists variables, size, and type
    • format long: Displays 16 numerical digits
    • format bank: Displays the number in banking format
    • Common mathematical functions: exp, sqrt, log, log10, abs, angle, conj, imag, real, ceil, fix, floor, round, sign
    • Operator precedence follows PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).
    • Using MATLAB for matrix manipulations: Creation, operations, element-by-element operations, matrix inversion, left division.
    • Functions for matrices: zeros, ones, eye, rand, size, tril, triu, diag, inv, det .

    MATLAB Variables

    • Variable names must start with a letter and can contain numbers or underscores.
    • Avoid using MATLAB reserved variables like ans, eps, i, j, Inf, NaN, pi

    MATLAB Functions

    • fzero: finds the root of a single equation
    • roots: finds all roots of a polynomial equation
    • lu: LU factorization of a matrix
    • chol: Cholesky factorization of a matrix

    MATLAB Plotting

    • Simple plotting: plot(x,y)
      • Creating plot using data in x and y vectors
    • Multiple plotting: plot(x,y, x,z)
    • Plotting options: plot(t,v,'--dc','LineWidth',2,...'MarkerSize',10,...'MarkerEdgeColor','k',... 'MarkerFaceColor','m'), title('Plot title'), xlabel('x-axis label'), ylabel('y-axis label'), grid on
    • Subplots: subplot(m,n,p), where m is rows, n is columns and p is plot position.
    • 3D Plotting; plot3(x,y.z), mesh(x,y,z), surf(x,y,z)

    MATLAB Programming

    • Script files are simply sequences of MATLAB commands
    • Function files start with the word function -Can accept input and return outputs
    • Structure Programming
      • Conditional statements (if, elseif, else, end)
      • Loops (for, while, end, break)
    • Logical Operators - logical expressions (&, |, ~ )
    • Input and output -Input: prompts the user for a value input -Output: disp(string), fprintf(format string),

    Group work information

    • Group 9
    • Group project topic: mse2

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    MATLAB Computer Applications (MSE 360/METE 352, MSE 262/METE 258) Lecture Notes PDF

    Description

    Test your knowledge on the basics of MATLAB with this quiz designed for 10th class students. You'll answer questions about variable names, vectors, commands, and more, helping reinforce your understanding of MATLAB. Perfect for anyone looking to enhance their programming skills in this essential software for technical fields.

    More Like This

    MATLAB Basics Quiz
    3 questions

    MATLAB Basics Quiz

    SoulfulVerdelite avatar
    SoulfulVerdelite
    Basics of MATLAB Programming Tools 2
    32 questions

    Basics of MATLAB Programming Tools 2

    AccurateKremlin avatar
    AccurateKremlin
    MATLAB Basics
    10 questions

    MATLAB Basics

    FreshestAspen avatar
    FreshestAspen
    MATLAB Overview and Basics
    10 questions

    MATLAB Overview and Basics

    ErrFreeWendigo5560 avatar
    ErrFreeWendigo5560
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser