# Zero-element

In a few cases you would need to define the function that return a Zero element. Zero element is the element which has the following features:

- The sum or subtraction with zero zero of some element remain value unchanged.
- Multiplication by zero makes zero.
- Division by zero is not defined.

`Sample`

type has `ZeroSample`

constant defined, all numeric value has their usual zero values which can be used for that purpose.