The complement of a complex number is not a standard term in mathematics. Complex numbers are often represented in the form a + bi, where a and b are real numbers, and i is the imaginary unit (√-1).
There are several operations that can be performed on complex numbers, but the term "complement" is not used to describe any of these operations.
It's possible the term "complement" was used in a specific context, such as a particular mathematical problem or a specialized field of study. To understand the meaning of "complement" in this context, you'd need more information about the specific scenario.