__ Trigger [required]__

**<X>** (non-repetitive numeric trigger [required])**:**
The checked number.

__Exits__ [none required]

The two exits represent two mutually exclusive possibilities:

**<Yes>** (non-repetitive numeric exit [not required])**:** The
input number (the value of **<X>**) in case it is equal to zero.

**<No>** (non-repetitive numeric exit [not required])**:** The
input number (the value of **<X>**) in case it is not equal to zero.

__Notice:__ If there is a need to distinguish between 3 different cases
(**<X>** smaller than zero, **<X>** equal to zero, or
**<X>** greater than zero),
use Compare.

__ Usage Examples __

** Test1 ** (need to complete)