Five consecutive steps of the maximum allowable stepsize have been taken, either the function is unbounded below, or has a finite asymptote in some directionor the maximum allowable step size is too small.

public UnboundedBelowException(
	string message
)

Public Sub New ( 
	message As String
)

public:
UnboundedBelowException(
	String^ message
)

new : 
        message : string -> UnboundedBelowException