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How do you find complex numbers?
The complex number is in the form of a+ib, where a = real number and ib = imaginary number.
Also, a,b belongs to real numbers and i = √-1.
Hence, a complex number is a simple representation of addition of two numbers, i.e., real number and an imaginary number..
What is needed to get a complex number?
Complex numbers are the numbers that are expressed in the form of a+ib where, a,b are real numbers and 'i' is an imaginary number called “iota”.
The value of i = (√-1).
For example, 2+3i is a complex number, where 2 is a real number (Re) and 3i is an imaginary number (Im)..
Why do engineers use J instead of i?
The symbol j in front of b indicates that it is imaginary; though you may have seen this as i in math and physics, engineers use a j because the symbol i is sacrosanct in electrical engineering to represent current..
We do it with fractions all the time.
The fraction ³/₈ is a number made up of a 3 and an 8.
We know it means "3 of 8 equal parts".
Well, a Complex Number is just two numbers added together (a Real and an Imaginary Number).

How do you find complex numbers?