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Calculators Graphics calculator

  1. Apr 16, 2008 #1
    Does anyone know of a graphics calculator that can solve simultaneous equations that have trigonometric functions with variables ie. cos(x)?
  2. jcsd
  3. Apr 19, 2008 #2


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    I think most graphing calculators can do this easily. My TI-89 and TI-92 can.
  4. Apr 19, 2008 #3
    on my casio the simultaneous equation solver just lets you sub a, b, and c values into
    anX+bnY=Cn and if you just try subbing a function such as cos into one of them it says Syn error. Does it work in a similar way on your calculator or are you able to just type in the whole equation?
  5. Apr 19, 2008 #4


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    When solving simultaneous equations I normally use an approach utilizing a calculator's ability to handle matrices, and the reduced row echelon form function, rref(. Can yours do that?
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