public int Roots(
	Halfspace that,
	out Cartesian pos,
	out Cartesian neg
)

public:
int Roots(
	Halfspace that, 
	[OutAttribute] Cartesian% pos, 
	[OutAttribute] Cartesian% neg
)

member Roots : 
        that:Halfspace * 
        pos:Cartesian byref * 
        neg:Cartesian byref -> int 

Return Value

The return value is 2 if found both roots.

The return value is 0 if vectors are co-linear.

The return value is -1 if vectors are not co-linear but no roots.

The return value is -3 if circles are barely touching, so no roots.