Question

Which of the following commands displays the string ‘Enter a value for D ‘ and then waits for the user to enter a number and then assigns that number to the variable D?

• A. D=enter(‘Enter a value for D ‘)
• B. input(D=,‘Enter a value for D ‘)
• C. D=input(‘Enter a value for D ‘)
• D. enter(D=,‘Enter a value for D ‘)
• E. None of the above

What is MATLAB’s response to the following command: a=(4*2==16/2)+3

• A. a=0
• B. a=1
• C. a=2
• D. a=4
• E. a=8

What is MATLAB’s response to the following command: a=3*8/4>=(2+6)/4

• A. a=0
• B. a=1
• C. a=4
• D. a=12
• E. a=24

Answer 1

Question 1:
C. D=input(‘Enter a value for D ‘)

Question 2:
a=(4*2==16/2)+3
a=(8==16/2)+3
a=(8==8)+3
a=(true)+3
[Note: true is logically equals to 1]
a=(1)+3
a=4
Answer:
D. a=4

Question 3:
a=3*8/4>=(2+6)/4
a=3*8/4>=(8)/4
a=24/4>=(8)/4
a=6>=(8)/4
[Note >= is less priority than /]
a=6>=2
a=true
[Note: true is logically equals to 1]
a=1
Answer:
B. a=1

Question 1:
C. D=input(‘Enter a value for D ‘)

Question 2:
D. a=4

Question 3:
B. a=1

Note: Check operator precedence (BODMAS rules) to know priority of operators