I’m trying to study for my Computer Science course and I need some help to understand this question.

• 1. Write an input statement that will prompt the user for a real number, and store it in a variable.Then, use the fprintf function to print the value of this variable using 2 decimal places.
• Answer:

• 2. When would you use disp instead of fprintf?When would you use fprintf instead of disp?

Answer:

• 3. Trace the following code and determine what will be printed after each line is executed.

num = 12.3;

disp(‘Hello!’)

fprintf ( ‘ Hmm how many ‘)

fprintf( ‘ lines n nwill print? n’ )

fprintf( ‘ %6.2f n’, num)

Answer:

Line1:

Line2:

Line3:

Line4:

Line5:

• 4. When would it be important to use legend in a plot?
• Answer:

5. Write a script that would create a 3×5 matrix of random integers and write this new matrix to a file called “Assignment3_Question5.dat”.

Answer: