ECE404L - LONG QUIZ

What is an M-file in MATLAB?

• A file containing MATLAB commands and instructions

• A file containing only comments

• A file containing only functions

• A file containing only scripts

What is the extension of an M-file in MATLAB?

• .mat

• .m

• .ml

• .matlab

Which symbol is used for comments in MATLAB?

• #

• //

• %

• $

What is the output of the following script? cost = 50; profit = 10; sale_price = cost + profit

• 50

• 10

• 60

• 0

Which of the following is true about function files in MATLAB?

• They do not return any value

• They can have one or more arguments

• They cannot contain comments

• They are easier to write than scripts

What does the following function calculate? function area(r) area = pi * r^2

• The circumference of a circle

• The area of a circle

• The volume of a sphere

• The perimeter of a rectangle

Which loop is used in the following script? for n = 1:10 x(n) = n^2; end

• While loop

• For loop

• Do-while loop

• Infinite loop

What is the purpose of the semicolon (;) in MATLAB scripts?

• To start a comment

• To end a script

• To suppress output

• To indicate a function

What will be the value of tol after executing the following script? tol = 0.0; n = 0; while tol < 10 n = n + 1; tol = tol + 2; end

• 0

• 2

• 8

• 10

Which construct is used to make decisions in MATLAB?

• Loop

• If Elseif

• Function

• Script