Script and Function Creation Flashcards

What is the correct way to call a function stored in a function handle `fh` with argument `3`?

Answer: fh(3)

A function handle is called using standard parenthesis syntax, just like a regular function call.

Which MATLAB command adds a folder to the search path so functions in it can be found?

Answer: addpath('folderName')

`addpath` appends or prepends a directory to MATLAB's search path at runtime.

In MATLAB, what is the output of `class(@sin)`?

Answer: 'function_handle'

`@sin` creates a function handle, and `class()` reports its type as `'function_handle'`.

How do you suppress output from a MATLAB statement inside a script or function?

Answer: End the statement with a semicolon (;)

A trailing semicolon prevents MATLAB from printing the result of a statement to the command window.

What is the purpose of `validateattributes` in a MATLAB function?

Answer: To check that input arguments satisfy specified class and attribute constraints

`validateattributes` checks that a variable belongs to the correct class and meets size/value constraints, throwing an error if not.

Which statement correctly defines a function that takes no inputs and returns no outputs in MATLAB?

Answer: function myFunc()

A zero-input, zero-output MATLAB function uses `function functionName()` with empty parentheses.

When debugging a MATLAB function, `dbstop if error` causes the debugger to:

Answer: Pause execution at the point where any error occurs

`dbstop if error` sets a breakpoint that pauses execution at the exact line that throws an error, allowing inspection of the workspace.