Script and Function Creation Flashcards
7 cards from real MATLAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Script and Function Creation flashcards as text
When MATLAB searches for a function named `foo`, which location is checked first?
Answer: The current working directory
MATLAB's search order places the current working directory at the top before checking the path.
What is a function handle in MATLAB?
Answer: A variable that stores a reference to a function for later invocation
A function handle (created with `@`) stores a reference to a function, enabling it to be passed as an argument or called indirectly.
How do you use `inputParser` to validate function inputs in MATLAB?
Answer: Create an inputParser object, add parameters with addRequired/addOptional, then call parse(p, varargin{:})
`inputParser` provides a structured way to define, validate, and set defaults for function arguments.
What is the role of `varargin` in a MATLAB function definition?
Answer: It allows the function to accept a variable number of input arguments
`varargin` is a special input keyword that captures any number of additional arguments into a cell array.
What does placing a `%` at the beginning of a line in a MATLAB script or function do?
Answer: Makes that line a comment that MATLAB ignores during execution
The `%` symbol begins a comment in MATLAB; everything after it on that line is ignored by the interpreter.
A nested function in MATLAB is unique because it:
Answer: Can access and modify variables in the workspace of its parent function
Nested functions share the workspace of the enclosing function, giving them access to the parent's local variables.
What does the `error()` function do inside a MATLAB function?
Answer: Throws an exception that stops execution and displays a message
`error()` raises an exception that terminates function execution and displays the provided message to the user.