CMPS 1371
Chapter 8 to Chapter 12 Review
1. True or False
a) xlswrite function always generates a new excel file on your desktop.
b) plot3 function draws lines by connecting points in 3-D.
c) titles and labels would show on the plot even though executed before
the plot command.
d) Nested for loops is one of the methods for iterating through a matrix.
e) The results of A * B and B * A are identical.
2. Which one of the following is NOT a valid structure assignment?
A. collection(3).message = 'hope you do well on this test'
B. collection = struct('firstName', 'Thomas', 'lastName', 'Crown')
C. collection[2].student = 'George P. Burdell'
D. collection(1).x = double('*')
E. None of the above, all are valid.
3. Which one of the following lines will produce an error in MATLAB?
A. double('hello') + 5
B. 'computer' > 'g'
C. double('I hate tests')
D. double('yes!') + [1:10]
E. 'donot' + 'cheat'
4. Given the following MATLAB command:
[x y z] = xlsread(excel_file)
What are the data types of x, y, and z?
A. x = double, y = double, z = cell array
B. x = double, y = character, z = cell array
C. x = double, y = cell array, z = cell array
D. x = cell array, y = cell array, z = cell array
E. None of the above
5. Given the following matrices:
A = [3 6 -1; 0 0 2; 9 0 4]
B = [5 7; 0 0; -3 -1]
C = [1 2 3; 4 5 6]
Which of the following commands would NOT result in an error?
I. [A B C]
II. [B A]
III. [A C]
IV. [C B]
A. II only
B. I, III, and IV
C. III only
D. All are correct
E. None of the above
