Finding Real and Imaginary Parts of Complex Numbers

[magda3227]

If I were given a complex number, such as

12/(12+3i)

in order to find the real and imaginary parts of the number, I assume that I cannot just reduce the fraction and say the real part is 1 and the imaginary part is 4. I can almost guarantee that this will not calculate the correct answer.

So how would I find the real and imaginary parts of this number?

I'm sorry to ask such a stupid question, but I am rewriting MatLab code into ANSI C and need to separate such numbers into their real and imaginary parts.

Thank you in advance.

 

[Integral]

Multiply the top and bottom of the complex conjugate (12-3i). This clears the denominator of the imaginary component.

 

[magda3227]

Thank you.

Sadly, I didn't think of doing that.

 

[arildno]

Thank you.

Sadly, I didn't think of doing that.

Why sadly?

Next time, you'll manage on your own.