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Complex numbers

  • 03-05-2009 7:59pm
    #1
    Closed Accounts Posts: 219 ✭✭


    This may seem a odd question but I have a complex number question that I have the answer to
    z=(6j)(9) 54j
    _____ = _____ = 2.769 + 4.154j
    9 + 6j 9 + 6j


    Can anyone help me output this answer on my calculator?
    I'm using a sharp EL-520W


Comments

  • Closed Accounts Posts: 6,081 ✭✭✭LeixlipRed


    I don't know if your calculator would be able to add complex numbers together. However, complex number addition is defined as follows:

    z=a+ib, w=c+id

    z+w=(a+c) + i(b+d)

    i.e. You add the real parts to the real and the complex to the complex.


  • Registered Users, Registered Users 2 Posts: 16,226 ✭✭✭✭Pherekydes


    Mode 3 (to enter complex number calculations)

    54i /(9+6i)

    =

    2.769etc

    2nd F <-,->

    4.15 etc i

    To enter i press the "a b/c" key


  • Closed Accounts Posts: 219 ✭✭Perrin


    A thousand thanks Pherekydes,that had me stumped for ages,guess I'm a little slow


  • Closed Accounts Posts: 6,081 ✭✭✭LeixlipRed


    Never even knew you could do that.


  • Registered Users, Registered Users 2 Posts: 16,226 ✭✭✭✭Pherekydes


    LOL. Neither did I until I took out my Sharp EL-520W and its manual after reading the OP! :D


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  • Closed Accounts Posts: 6,081 ✭✭✭LeixlipRed


    You cheat you :D


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