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GLOSSARY argument: A value provided to a function when the function is called. This value is assigned to the corresponding parameter in the function. body: The sequence of statements inside a function definition. composition: Using an expression as part of a larger expression, or a statement as part of a larger statement. dot notation: The syntax for calling a function in another module by specifying the module name followed by a dot (period) and the function name. flow of execution: The order in which statements are executed during a program run. frame: A box in a stack diagram that represents a function call. It contains the local variables and parameters of the function. fruitful function: A function that returns a value. function: A named sequence of statements that performs some useful operation. Functions may or may not take arguments and may or may not produce a result. function call: A statement that executes a function. It consists of the function name followed by an argument list. function definition: A statement that creates a new function, specifying its name, parameters, and the statements it executes. function object: A value created by a function definition. The name of the function is a variable that refers to a function object. header: The first line of a function definition. import statement: A statement that reads a module file and creates a module object. local variable: A variable defined inside a function. A local variable can only be used inside its function. module: A file that contains a collection of related functions and other definitions. module object: A value created by an import statement that provides access to the values defined in a module. parameter: A name used inside a function to refer to the value passed as an argument. |