inequality symbol मीनिंग इन हिंदी

This usage makes ?" and ?" analogous to the inequality symbols d " and <.
Do the inequality symbols, d ", and e " have any meaning under complex numbers?
The only exception is that when multiplying or dividing by a negative number, the inequality symbol must be flipped.
Two barriers to any new system of inequality symbols are A ) the inertia of millions of programmers and their mega-mass of software, and B ) the inconvenience of using symbols that are not instantly available on every ASCII code keyboard.