DirectedInfinity
DirectedInfinity[] represents an infinite numerical quantity whose direction in the complex plane is unknown.
DirectedInfinity[z] represents an infinite quantity that is a positive real multiple of the complex number z.
Examples
Complex infinity:
DirectedInfinity[]
(* ComplexInfinity *)Positive infinity:
DirectedInfinity[1]
(* Infinity *)Negative infinity:
DirectedInfinity[-1]
(* -Infinity *)Please visit the official Wolfram Language Reference for more details.