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Thread: DavidH can't remember how to...

  1. Sep 29th, 2002, 04:24 PM #1
    DavidHooper
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    DavidH can't remember how to...

    Arh, I can't for the life of me remember how to solve this equation for complex z:
    z4 = -1

    I remember you can write z = a + ib, substitute for z and the compare the real and imaginary parts blahblahblah but that takes aaages. There's definitely a quicker way (did it involve De Moivre's Theorem?)

    Flip, flip and double flip! I handed in my old textboooks so I can't check in them and I start uni next week!

    Anyone? Pleeease?!
    There are 10 types of people in the world - those that understand binary, and those that don't.
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  2. Sep 29th, 2002, 04:34 PM #2
    DavidHooper
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    Ah, found the answer. It was De Moivre and it was here all along.
    There are 10 types of people in the world - those that understand binary, and those that don't.
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