The set of all

(The set of

Or in other words the set of values that the output values lie in.

Example: the square of the natural numbers

• the domain (input values) is

• the codomain (possible output values) is

• the range (actual output values) is {0,1,2,4,9,16,...}

**possible**output values of a function.(The set of

**actual**output values is called the range.)Or in other words the set of values that the output values lie in.

Example: the square of the natural numbers

**N**= {1,2,3,...}:• the domain (input values) is

**N**• the codomain (possible output values) is

**N**• the range (actual output values) is {0,1,2,4,9,16,...}

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