Definition

The set of all possible output values of a function, which includes the actual outputs but can also include other values that are not produced by the function.

Example

In mathematics, the codomain of a function is important for understanding its behavior and properties.

Conversation

I was reading about functions in math class today.

Oh really? Did you learn about the codomain of a function?

Yes, it sounds interesting but a bit complicated.

It can be, but understanding the codomain helps with grasping how functions behave.

Synonyms & Antonyms

Root Explanation

Codomain → It is formed from "co-" (meaning together) and "domain" (from Latin "dominium", meaning ownership or control). The term codomain refers to the set of possible output values that a function can produce, emphasizing the relationship of outputs in a mathematical context.

Memory Tip

Think of 'together' ('co-') and 'ownership' ('dominium') to remember that a codomain is the set of outputs that a function can 'own' or produce.

Visually Confused Words