MATLAB Modeling and Simulation Quiz

MATLAB Modeling and Simulation

• MATLAB is a software used for numerical computation and visualization.
• MATLAB has two types of program files: scripts and functions.
• Scripts are a series of commands that are executed together and operate on data in the workspace.
• Functions can accept inputs and return outputs, with internal variables local to the function.
• The menu function displays a figure window with pushbuttons representing options.

Objectives

• Construct MATLAB scripts
• Create user-defined functions that return a single value.
• Identify and use MATLAB basic input and output commands.
• Construct MATLAB scripts with selections and looping.

Subtopic 1: Input and Output

• input() lets users type in integer and string data.
• fprintf() displays formatted text or data.

Toolstrip and Editor

• Scripts are stored in files with an .m extension.
• The MATLAB editor includes features for running, editing, and saving code (e.g., clear commands, run and time).

M Files

• MATLAB permits script and function files (ending with .m).
• Scripts execute commands sequentially without input parameters or outputs.
• Functions accept inputs, perform calculations, and can return outputs.

Example of Scripts

• Scripts execute commands sequentially.
• Examples include calculating area (rectangle, square, triangle, and circle).
• Using disp() displays data without the variable identifier.
• fprintf() displays formatted output.

Examples of Scripts (continued)

• Scripts can include strings and arrays (vectors, matrices).
• Demonstrate basic calculations and operations.
• Examples of using input functions to get user input through prompts.
• Provide examples of output commands (disp, fprintf) for displaying data.
• Includes examples of vectors and matrices.

Selection and Looping Statements

• IF statements help establish conditions for code execution based on a Boolean value.

• Example demonstrates implementing conditional logic within a for loop (and examples of code for negative and positive values).

• Demonstrates switch statements, a tool for selecting from different options.

  • For example different outputs based on variable values (grade).

• For loops for iterating over a range of values.

• Demonstrates handling different kinds of loop conditions (e.g., for, while loop syntax, range parameters, break statements).

The Menu Function

• The menu function prompts the user for input, displaying a list of options from which to choose.
• Demonstrates user interaction using buttons based on the choices.

Input and Output Commands

• disp displays an array or string.
• fscanf reads formatted data from a file.
• format controls the format of display.
• fprintf displays formatted output to the screen or a file
• input gets user input from the keyboard.
• A semicolon ; suppresses the screen printing.

Input and Output Format Codes

• %s: String
• %d: Integer
• %f: Floating-point number
• %e: Floating point in scientific notation
• \n: Newline
• \t: Tab

Test your knowledge of MATLAB modeling, scripting, and function creation. This quiz covers fundamental concepts of input/output operations and the structure of MATLAB scripts and functions. Enhance your understanding of how to effectively use MATLAB for numerical computation and visualization.