So far we have seen Higher Order Functions that take other functions as parameters. However, not all Higher Order Functions work this way. Functions can produce other functions as their output. This method allows for potentially higher levels of code reuse. An adder is a function that takes in an input number and returns that number incremented by some constant determined during the adder's definition.

For example:

add1 = make_adder(1) add1(5) #Result: 6 make_adder(5)(10) #Result: 15 

define a functionmake_adderthat takes in a numerical argumentnand returns an adder function that takes a single numerical argument and increments that argument byn.