int :trunc ( float $NUMBER )

Truncates a real number (returns the integer part).

# :trunc example
:writeln :trunc f+3.3   # Should be +3
:writeln :trunc f+3.9   # Should be +3
:writeln :trunc f-4.1   # Should be -4
:writeln :trunc f-4.8   # Should be -4