# The Advent of the Imaginary Number Concept The value of “i” which represents an imaginary number is quite useful for balancing seemingly impossible tasks like when resolving problems with electricity or wireless technologies. Working with wave functions involves working with the value of an imaginary number because of its ability to resolve mathematical problems. If numbers are thought of as a straight horizontal line on an X axis, with 0 in the middle, with all negative numbers on the left hand side of zero (e.g. -1, -2, -3 etc.) and all positive numbers on the right hand side of zero (e.g. 1, 2, 3, etc.), then imaginary numbers would be plotted upon the Y coordinate axis, displayed vertically (e.g. +1i, +2i, +3i going up or -1i, -2i, -3i going down etc.). This allows imaginary numbers to be treated the same as regular numbers, just upon a different plane of axis. Imaginary numbers are essential to certain tasks like aircraft radio tower control as imaginary numbers allow for technologies like Radio Detection And Ranging (RADAR)

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