def equals(v1, v2, epsilon=1e-06):
    """
    Returns True if difference between given values is less then tolerance.
    
    Args:
        v1: float
            Value one.
        
        v2: float
            Value two
        
        epsilon: float
            Max allowed difference.
    
    Returns:
        bool
            True if values equal, False otherwise.
    """
    return abs(v1 - v2) <= epsilon
