===== Floor ======

==== floor( a ) ====

Returns a rounded down to the closest integer.

=== Description ===

<code>floor( a )</code>

Returns the value of a rounded down to the closest integer.

=== Parameters ===

| ''a'' | Value |

=== Return value ===

This function returns the largest integral value not greater than a.

=== Example usage ===

<code>floor(7.89)</code>

Returns 7.