Hit365 C Programming Assignment 2: This Assignment Is Worth

Hit365 C Programmingassignment 2this Assignment Is Worth 15 Of The To

This assignment requires developing a non-scientific calculator in C that performs basic arithmetic operations such as addition, subtraction, multiplication, division, square root, and squaring a number. The program should prompt the user to enter a mathematical expression involving two or more operands, process the input, and display the accurate result up to six decimal places. The calculator should include functionalities like a help function explaining available operations, memory storage for the current answer for further calculations, and a refresh function to reset the stored memory. Additionally, after each calculation, the user should have the choice to continue using the current answer for further computations or to end the session. The program must be well-commented, compiled and run correctly in Microsoft Visual Studio 2017, and submitted as a single *.c file via Learnline. Late submissions incur penalties, and plagiarism will result in a failing grade.

Paper For Above instruction

Developing an efficient and user-friendly calculator application in C requires careful consideration of user input handling, function implementation, and program structure. The core functionality of the calculator involves parsing and evaluating simple mathematical expressions with multiple operands. Implementing this feature involves designing an input method that can interpret user commands, perform necessary calculations accurately, and present results with precision up to six decimal places.

To begin with, the program should prompt the user to enter an equation, for example: "5 + 3 * 2" or "sqrt(16)", depending on the input functions supported. Given the scope is limited to basic operations, the program must parse the input string to identify operands and operators. This can be achieved through string tokenization using functions like strtok() or by employing custom parsing logic. Once operands and operators are identified, the program performs calculations respecting order of operations if necessary or simply processing sequentially, as per user expectation.

Utilizing the math.h header, functions such as sqrt() will be used to implement square root operations. For squaring, a custom function or a simple multiplication can be used. Given the program requires supporting symbols to represent square and square root operations, appropriate symbols should be chosen and clearly documented for the user; for example, "^" for power (square), and "r" or "√" for square root.

The calculator should offer a help menu accessible via a command like "help" that describes available functions and symbols. After each calculation, the program displays the result, updates the stored memory, and prompts the user to select whether to continue or terminate. The 'memory' feature allows storing the latest result, which can then be used in future calculations—implemented via a variable that holds this value. The 'refresh' function clears the stored memory and resets the calculator to its initial state, ready for a new session or fresh input.

In implementing this calculator, attention must be paid to input validation to handle invalid expressions gracefully and maintain program stability. Proper commenting, modularization with functions handling specific tasks (parsing, calculations, displaying help menu, etc.), and adherence to coding standards are essential to maximize clarity and presentation quality.

Given the importance of compatibility with Microsoft Visual Studio 2017, the code should avoid compiler-specific extensions and rely on standard C features. The program's output should be formatted to display results with six decimal places using printf() formatting specifiers. An example interaction includes prompting for an expression, displaying the answer, and asking whether to continue or exit, with all prompts and messages clear and instructive.

Overall, this project emphasizes fundamental programming skills, including string processing, arithmetic operations, user interaction, and program structure in C, providing a practical foundation for further development of more complex calculator applications.

References

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• Harbison, S. P., & Steele, G. L. (2002). C: A Reference Manual (4th Edition). Prentice Hall.
• Simon, D. (2018). Mastering Algorithms with C. Packt Publishing.
• ISO/IEC 9899:2011. Programming Languages — C. International Organization for Standardization.
• Knuth, D. E. (1997). The Art of Computer Programming, Volumes 1-3. Addison-Wesley.
• Nelson, G. (2015). Programming in C: A Practical Approach. Cengage Learning.
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