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Ti 89, Solving multiple equations with complex numbers

  1. Jan 27, 2013 #1
    1. The problem statement, all variables and given/known data
    So, I know how to solve multiple equations using the cSolve method on the ti 89, but for some reason when I try to solve the following...

    80a + 240b = 0 and (80+J79.975)a-80b = 50 by using the following syntax...


    cSolve(80a + 240b = 0 and (80+J79.975)a-80b = 50 ,{a,b})

    I get a message saying that there are too many arguements, what am I doing wrong?
    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jan 27, 2013 #2
    Can anyone helpme with this? I am not having any luck at all, is this even possible?
     
  4. Jan 27, 2013 #3

    SteamKing

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    When all else fails, try reading the instructions.

    The proper complex number has a format of a + b*i, not a + b*J
     
  5. Jan 27, 2013 #4
    I know that haha, as it turns out, in my calculator for some reason you cannot use a and b as algebraic variables, it works perfectly fine using any other variable XD
     
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