Magnificent Matlab Test - 82+ MCQs: MATLAB test: Evaluate Your Programming Skills with MATLAB Questions and Answers

1. Which MATLAB function is used for creating a plot?

plot()

display()

graph()

draw()

2. In MATLAB, what does the 'fminunc' function do?

Finding minimum values of a function

Fast matrix multiplication

Fourier transform minimization

Fit a sine curve to data

3. What is the purpose of the 'kron' function in MATLAB?

Calculate the Kronecker product of two matrices

Compute the eigenvalues of a matrix

Generate a random matrix

None of the above

4. What does the 'svd' function do in MATLAB?

Solve a system of linear equations

Perform singular value decomposition

Find the standard deviation

None of the above

5. What is the purpose of the 'polyfit' function in MATLAB?

Create a polynomial function

Fit a polynomial to data

Calculate the roots of a polynomial

Generate a random polynomial

6. How do you set the axis limits in a MATLAB plot?

axisLimits()

setAxes()

xlim() and ylim()

limitAxes()

7. How do you check if a number is even in MATLAB?

isEven()

mod()

iseven()

None of the above

8. What does the 'eye' function in MATLAB do?

Create an identity matrix

Generate random numbers

Perform eye tracking

None of the above

9. What is the default extension for a MATLAB script file?

.mat

.script

.code

10. How do you concatenate two cell arrays 'A' and 'B' vertically in MATLAB?

vertcat(A, B)

concatenateVertically(A, B)

mergeRows(A, B)

stackCellsVertically(A, B)

11. What does the 'fliplr' function do in MATLAB?

Flip the matrix left to right

Transpose the matrix

Flip the matrix up to down

None of the above

12. In MATLAB, what does the 'randn' function generate?

Random integers

Random floating-point numbers

Random normal distribution numbers

Random complex numbers

13. How do you concatenate two matrices vertically in MATLAB?

vertConcat()

concatenateVertically()

vcat()

vertcat()

14. Which MATLAB function is used for basic arithmetic operations like addition and subtraction?

addsubtract()

basicOps()

arithmetics()

None of the above

15. What does MATLAB stand for?

Matrix Laboratory

Mathematical Language

Machine Learning and Algorithms Toolbox

Multidimensional Array Language

16. What is the MATLAB command for reading data from a CSV file?

readCSV()

csvread()

importData()

loadCSV()

17. How do you remove duplicate elements from an array in MATLAB?

uniqueArray()

removeDuplicates()

arrayUnique()

unique()

18. How do you comment a single line in MATLAB?

// This is a comment

# This is a comment

/* This is a comment */

% This is a comment

19. What is the primary purpose of the 'subplot' function in MATLAB?

Create subplots within a figure

Split the MATLAB workspace

Arrange multiple open windows

None of the above

20. How do you open the MATLAB Help browser?

helpBrowser()

openHelp()

doc()

None of the above

21. What is the 'conv' function used for in MATLAB?

Convert data types

Convolve two vectors

Compute the covariance matrix

None of the above

22. In MATLAB, what does the 'for' loop primarily iterate over?

Characters in a string

Elements in a matrix

Function arguments

File directories

23. How do you create a user-defined function in MATLAB?

function myFunction()

defineFunction()

createFunction()

function myFunction(varargin)

24. Which command is used to find the maximum value in an array in MATLAB?

maxValue()

maximum()

max()

None of the above

25. Which command is used to display the contents of a variable in MATLAB?

showVariable()

display()

dispVar()

None of the above

26. How do you create a row vector in MATLAB?

rowVector()

vector = [1, 2, 3]

createVector(1, 2, 3)

No way to create a row vector

27. What is the purpose of the 'hist' function in MATLAB?

Compute the histogram of an image

Plot a histogram of data

Calculate the mathematical histogram

None of the above

28. What is the MATLAB command for element-wise multiplication of two matrices 'A' and 'B'?

A * B

A .* B

A x B

multiply(A, B)

29. What is the primary use of the 'imread' function in MATLAB?

Read an image from a file

Import data from an Excel file

Read binary data from a file

None of the above

30. In MATLAB, what does the 'polyfit' function do?

Fitting a polynomial to data

Finding prime factors

Solving polynomial equations

Creating a polygon

31. What is the 'cumsum' function used for in MATLAB?

Compute the cumulative sum of elements

Calculate the sum of a matrix

Find the sum of a series

None of the above

32. How do you create a 3D plot in MATLAB?

plot3()

scatter3()

3Dplot()

create3DPlot()

33. Which command is used to find the square root of a number in MATLAB?

sqrt()

squareRoot()

findSqrt()

None of the above

34. What is the purpose of the 'fprintf' function in MATLAB?

Display text in the command window

Read data from a file

Write formatted data to a file

Create a figure window

35. What is the primary use of the 'ode45' function in MATLAB?

Solve ordinary differential equations

Perform matrix multiplication

Generate random numbers

Calculate the eigenvalues of a matrix

36. How do you extract specific elements from an array based on a condition in MATLAB?

extractElements()

filterArray()

arrayCondition()

array(arrayCondition)

37. How do you perform element-wise multiplication of two matrices in MATLAB?

multMatrices()

multiplyElements()

elementWiseMult()

38. What is the purpose of the 'sort' function in MATLAB?

Sorting data in ascending order

Removing duplicate elements

Shuffling array elements

Finding the median

39. How do you create a colormap in MATLAB?

defineColormap()

mapColor()

colorPalette()

colormap()

40. What is the MATLAB command for finding the eigenvalues of a matrix 'A'?

eig(A)

eigenvalues(A)

findEigen(A)

eigen(A)

MATLAB MCQ Test 2