Basic Introduction Flashcards
7 cards from real MATLAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basic Introduction flashcards as text
Which MATLAB function displays output to the Command Window without suppressing it?
Answer: Both disp() and fprintf()
Both disp() and fprintf() print output to the Command Window, though fprintf() offers more formatting control.
What does the semicolon (;) do when placed at the end of a MATLAB statement?
Answer: Suppresses output to the Command Window
A semicolon at the end of a statement suppresses its output from being printed to the Command Window.
In MATLAB, what is the result of 5 \ 20?
Answer: 4
The left-division operator (\) computes 20/5 = 4, solving x such that 5*x = 20.
How do you create a row vector of integers from 1 to 10 with step 2 in MATLAB?
Answer: 1:2:10
The colon syntax start:step:end creates a row vector; 1:2:10 produces [1 3 5 7 9].
Which of the following correctly accesses the element in row 2, column 3 of matrix M?
Answer: M(2,3)
MATLAB uses parentheses for indexing, so M(2,3) retrieves the element at row 2, column 3.
What does the command 'clc' do in MATLAB?
Answer: Clears the Command Window display
clc clears the Command Window of all displayed text, but does not remove workspace variables.
What is the MATLAB operator for element-wise multiplication of two arrays?
Answer: .*
The .* operator performs element-wise multiplication, while * performs matrix multiplication.