What is the importance of complex number in engineering solution?

Question

What is the importance of complex number in engineering solution?

Answer 1

Great significance of course, as will as it is simple when you use it by the time.

When you solve electric circuit problems, you will need to change the vlaue of the current and voltage from scalar form to vector form and reverse.

Vector form of current is a complex number .

Also complex numbers are used while solving differential equations , i can remember Eulers formula says :

e^i(x) = cos(x) + i sin(x)

And so on .. just don't be bothered, solve more exercises and you'll master it !