Root Negative (√-) Techie Techno House
The imaginary entity is a solution to the question; ‘What is a negative square?’. Although there is no real answer.

He can be used to extend the real dominion to what are called complex forms, using repetition and multiplication. A simple example is non-parsable. Imaginary people are an important concept, which extends the real existential system to the complex system, which in turn provides at least one root for every nonconformant polynomial.
The term "imaginary" is used because there is no real person that is a negative square.