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Please help me to understand "complex number"

  1. Apr 4, 2015 #1
    we know Complex number is consists of a real & imaginary number so if a+ib is a complex number which one is real part, imaginary part, real number and imaginary number?????
    I think "a" real and "ib" imaginary part...plzz help me if Iam wrong ...
     
  2. jcsd
  3. Apr 4, 2015 #2

    Svein

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    As long as you have a and b real, a + ib is the standard representation of a complex number (and, of course, i is the imaginary unit with i2 = -1).
     
  4. Apr 4, 2015 #3

    jfizzix

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    the real and imaginary parts of a complex number are like [itex]x[/itex] and [itex]y[/itex] components of a vector.

    The real part is the number of "ones" you have, and the imaginary part is the number if "i's" you have

    Given a complex number [itex]a+bi[/itex]
    [itex]a[/itex]is the real part
    and
    [itex]b[/itex] is the imaginary part

    You have amount [itex]a[/itex] of "ones", and amount [itex]b[/itex] of "i's"
     
  5. Apr 4, 2015 #4

    Mark44

    Staff: Mentor

    It's a little confusing at first, but the real part and the so-called imaginary part b, are real numbers.
     
  6. Apr 4, 2015 #5

    WWGD

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    Just to add that, to be precise, Complex numbers can also be represented in polar form.
     
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