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Welcome to the MATLAB Basics MCQs Page

Dive deep into the fascinating world of MATLAB Basics with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of MATLAB Basics, a crucial aspect of MATLAB. In this section, you will encounter a diverse range of MCQs that cover various aspects of MATLAB Basics, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MATLAB.

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Check out the MCQs below to embark on an enriching journey through MATLAB Basics. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MATLAB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of MATLAB Basics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MATLAB Basics MCQs | Page 4 of 17

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Q31.
Which command is used to clear a command window?

a.

clear

b.

close all

c.

clc

d.

clear all

Discuss
Answer: (c).clc
Q32.
To determine whether an input is MATLAB keyword, command is?

a.

iskeyword

b.

key word

c.

inputword

d.

isvarname

Discuss
Answer: (a).iskeyword
Q33.
Command used to display the value of variable x.

a.

displayx

b.

disp(x)

c.

disp x

d.

vardisp(‘x’)

Discuss
Answer: (b).disp(x)
Q34.
Which of the following statements shows the result of executing the following line in the editor window? 
size = [1 3]’        ;

size(size)

a.

error

b.

1 3

c.

3 1

d.

3 3

Discuss
Answer: (a).error
Q35.
Executing in the command window the following code returns. 
a = [1:3]’ ;
size(a)

a.

error message

b.

1 3

c.

3 1

d.

31

Discuss
Answer: (c).3 1
Q36.
Command is used to save command window text to file.

a.

saveas

b.

texttofile

c.

diary

d.

todiary

Discuss
Answer: (c).diary
Q37.
Executing in the editor window the following code returns. 
a = 1; sin(a) a = 2;

a.

0.4815

b.

0.8415

c.

1

d.

0.9093

Discuss
Answer: (b).0.8415
Q38.
To stop the execution of a MATLAB command, used keys?

a.

ctrl+c

b.

ctrl+s

c.

ctrl+b

d.

ctrl+enter

Discuss
Answer: (a).ctrl+c
Q39.
Which is the invalid variable name in MATLAB?

a.

x6

b.

last

c.

6x

d.

z

Discuss
Answer: (c).6x
Q40.
What is the difference between syms ‘x’ and sym ‘x’?

a.

there is no difference, they are the same functions

b.

they are equivalent

c.

syms ‘x’ makes the declaration long lasting while sym ‘x’ makes the declaration short lasting

d.

syms ‘x’ makes the symbol short lasting while sym ‘x’ makes the declaration long lasting

Discuss
Answer: (c).syms ‘x’ makes the declaration long lasting while sym ‘x’ makes the declaration short lasting
Page 4 of 17

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