CS122 Homework 5: Relational / Logical Operators And Branchi

CS122 Homework 5: Relational / Logical Operators and Branches (if & switch) 15 Points Total

The following 3 exercises are to be completed for Homework 5 - using Chapter 4 in the textbook (sections 4.1 to 4.4.4, and section 4.5). Exercises: 4.4, 4.6, 4.8 (pp. in textbook)

The deliverable is a hard copy printout of the typed exercise questions and answers. If using MATLAB for obtaining the solutions, you may copy/paste the MATLAB input syntax and the resulting output for the answers (still include the typed exercise questions). If helpful – include a copy of the MATLAB figure being created. Type your name and "CS 122-1 HW2" for the 8:00AM class, "CS 122-2 HW1" for the 10:20AM class, “CS122-3" for the 12:40PM class, or “CS122-4" for the 2:20PM class. Also include the due date (March 9, 2016) as part of the assignment heading. After including your name, section, and due date – print the assignment for submission. This assignment is due in class on the due date (Wednesday, March 9, 2016).

Paper For Above instruction

In this exercise, we explore fundamental concepts related to relational and logical operators, as well as control flow structures such as if statements and switch-case constructs, within the context of programming in C++ or MATLAB. Mastery of these concepts is essential for developing robust decision-making algorithms in software development, especially in fields such as hospitality management systems where event-driven behaviors are critical.

Relational operators in programming languages such as C++ and MATLAB include operators like == (equal to), != (not equal to), (greater than), = (greater than or equal to). These operators are used to compare values and evaluate conditions, forming the basis for decision-making in algorithms. Logical operators such as && (logical AND), || (logical OR), and ! (logical NOT) expand the capability to combine multiple conditions, allowing complex control flows.

The if statement is a fundamental control structure that executes a block of code only if a specified condition evaluates to true. It can also include else and else if clauses to handle alternative scenarios. For example, in a hotel management system, an if statement could determine whether a guest qualifies for a discount based on their membership status. The switch statement provides a more streamlined approach when dealing with multiple discrete cases based on the value of a variable, such as selecting a payment method or room type.

Understanding and properly implementing these decision structures is critical in programming. For instance, in MATLAB, logical conditions are used within if statements as follows:

if (condition)

% execute code


elseif (another condition)


% execute alternate code


else


% execute default code


end

Similarly, in C++, a switch-case structure might look like:

switch (variable) {

case value1:


// code


break;


case value2:


// code


break;


default:


// code


}

In executing the exercises from the textbook (Sections 4.1 to 4.4.4, and 4.5), students are expected to demonstrate proficiency by constructing correct logical expressions and control flow statements. These exercises reinforce understanding of how to implement decision-making logic in real-world scenarios, such as managing hotel reservations, evaluating customer eligibility, or automating booking procedures.

Implementing Exercise Solutions

When solving the specified exercises (4.4, 4.6, 4.8), it is advisable to write clear and well-commented code, which logically models the conditions and processes described in each problem. For MATLAB-based solutions, include both the input commands and the resulting outputs, along with any graphical representations that aid understanding. For C++ implementations, focus on proper syntax and indentation, making the control flow transparent and easy to follow.

In addition to correct code, comprehensively explain the logic used, including how the relational and logical operators contribute to the decision-making processes. This explanation should be integrated into the documentation of your answers, emphasizing clarity and correctness.

Overall, mastering these conditional constructs enhances your ability to program complex systems that depend on multiple criteria, a skill highly valued in the hospitality industry and other sectors requiring automated decision-making processes.

References

  • Stroustrup, B. (2013). The C++ Programming Language (4th ed.). Addison-Wesley.
  • Matlab Documentation. (2023). Logical and relational operators. MathWorks. https://www.mathworks.com/help/matlab/math/relational-and-logical-operators.html
  • Deitel, P., & Deitel, H. (2017). C++ How To Program (10th ed.). Pearson Education.
  • Gaddis, T. (2018). Starting Out with C++: From Control Structures through Objects (9th ed.). Pearson.
  • Cormen, T. H., Leiserson, C. E., Rivest, R. L., & Stein, C. (2009). Introduction to Algorithms (3rd ed.). MIT Press.
  • Hennessy, J., & Patterson, D. (2011). Computer Organization and Design: The Hardware/Software Interface (4th ed.). Morgan Kaufmann.
  • Brookshear, J. (2015). Computer Science: An Overview (12th ed.). Pearson.
  • Oppenheim, A. V., & Willsky, A. S. (1996). Signals and Systems (2nd ed.). Prentice Hall.
  • Rebert, R. (2019). Decision Structures in MATLAB. MATLAB Central. https://www.mathworks.com/matlabcentral/fileexchange/56739
  • Roberts, M., & Hoskisson, R. (2010). Hospitality Management and Operations. Wiley.

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