Functions and Flow Control 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 Functions and Flow Control flashcards as text
What type does `varargin` produce inside a MATLAB function?
Answer: A cell array
`varargin` collects extra input arguments into a cell array that can be indexed with {}.
Which MATLAB construct should be used to catch and handle runtime errors?
Answer: try...catch
The `try...catch` block lets you intercept runtime errors and execute alternative code.
What does `error('message')` do in MATLAB?
Answer: Throws a runtime error and halts execution
`error()` raises an exception that stops execution unless caught by a try-catch block.
In MATLAB, how do you pass a function as an argument to another function?
Answer: Using a function handle created with @
A function handle `@funcname` creates a reference to the function that can be passed as an argument.
What is the result of calling a function handle `f = @(x) x + 1` with `f(4)`?
Answer: 5
The anonymous function adds 1 to its input, so `f(4)` returns 4 + 1 = 5.
Which loop type is best suited when the number of iterations is not known in advance?
Answer: while loop
A `while` loop continues until its condition becomes false, making it ideal when iteration count is unknown.
What does `return` do when used inside a MATLAB function?
Answer: Immediately exits the current function and returns to the caller
`return` causes control to pass back to the calling function (or command prompt) immediately.