Floor

Trigger: Floor (math)

Implements the floor function. Returns the greatest integer less than or equal to its argument.

Format:

floor(exprn)

Arguments:

exprn

Expression to compute the floor of.

Return type:

int

Error conditions:

Returns SFalse if exprn evaluates to SFalse.

Examples:

1. value=floor(5.5)
  Sets value to 5.
2. value=floor(-2)
  Sets value to -2.