University:
Georgia Southern University
Course:
ENGR1121 | Computing in Mechanical Engineering
Academic year:

2024
Views:

108

Pages:

1
Author:

Jalen W.

ENGR1121 – Computing Applications in Mechanical Engineering Lab Conditional Structures Lab due: end of lab Total points: 20 Labs are to be individual work. You may use MATLAB Marina, MATLAB’s help, and your notes. Lab work will be graded during lab time and working results must be shown to the lab instructor by the end of the scheduled lab time. All MATLAB programs and functions must be completed and submitted in accordance with the Computing Assignment Format and the MATLAB Coding Style. Submit an electronic copy of your lab work to the appropriate Dropbox Folder in GSU’s Folio by the end of lab. No hard copy needed unless specifically requested by the instructor. Grading Each problem will be graded according to: program design (identifying inputs/givens, process, and outputs; algorithm) and program style (program comments, variable names, proper formatted input and output including units) 25%, and program correctness 75%. Lab Work 1. (5 points) Write a script that calculates the variable mode (a string) which represents the mode of transport used to travel a certain distance according to the following definition. You are given a variable called distance that represents the distance to be covered in miles. distance <= 2 miles: ‘Walk’ 2 miles < distance <=10 miles: ‘Bicycle’ 10 miles 30 miles: ‘Delta Airlines’ 2. (5 points) Write a MATLAB program that will display a menu with the donut choices: glazed, cake, jelly, and crème; and display the cost of the donut selected from the menu. The donut costs are: glazed $0.50, cake $0.50, jelly $0.65, and crème $0.80. The menu can be generated using the MATLAB statement choice=menu('Donut Choices','glazed','cake','jelly','creme'); The menu function will return an integer corresponding to the number of the button selected. The variable choice will be assigned the value corresponding to the menu button pressed. 3. (10 points) Given an item’s cost in dollars and an indicator of whether the item is taxable or not, compute and display the total cost of the item to the purchaser. The indicator for whether an item is taxable or not should be a character: T for taxable and E for exempt. Assume the tax on the item if it is taxable is 6.5%. The item cost and taxable indicator should be read in from the user. The optional argument 's' used with the input function as shown in Figure 1 will allow characters and strings to be read in. To compare a variable holding a character to a character literal, enclose the character literal in single quotes, for example (var == 'A'). % read in a character using input function indicator = input('Enter taxable or exempt (T or E): ','s'); Figure 1, Input Function Set up to Read in Characters or Strings 1 Instructor: Dr. Priya Goeser

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