ENGI 1331 exam questions with answers and rationales 2026 for university of Houston spring final exam.

ENGI 1331 exam questions with answers and rationales 2026 for university of
Houston spring final exam




ENGI 1331 Final Exam Study Guide (Spring 2026)

Course Description: Introduction to computing; matrix arithmetic, programming
constructs, algorithms, and graphical visualization using MATLAB; problem solving
in engineering analysis .



Module 1: Scripts, Variables, & Basic I/O (Questions 1-30)

Question 1: What symbol is used in MATLAB to indicate a comment?



A. //



B. #



C. %

,D. <!--



Correct Answer: C. %



Rationale: The percent sign (%) is used to denote comments in MATLAB. Any text
that follows on the same line is ignored by the interpreter.



Question 2: What is the output of the following command? x = 3; y = 2; z = x^y;
disp(z)



A. 5



B. 6



C. 8



D. 9



Correct Answer: D. 9

,Rationale: The ^ operator is exponentiation. x^y is 3^2 which equals 9. The
semicolon suppresses output, but disp(z) displays the result.



Question 3: Which command clears all variables from the MATLAB workspace?



A. clc



B. clear



C. clf



D. delete



Correct Answer: B. clear



Rationale: clear removes all variables from the workspace. clc clears the
command window but not variables, while clf clears figures.



Question 4: Which command clears the command window?

, A. clear



B. clean



C. clc



D. delete



Correct Answer: C. clc



Rationale: clc stands for "clear command window". The workspace variables
remain unaffected.



Question 5: How do you suppress output of a calculation in MATLAB?



A. Add // at the end



B. Add ; at the end