Complex Numbers by gp4uG1n

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									Complex Numbers

  Using the TI 83 Plus Calculator
       Eastern High School
            July 2007
Setting the Calculator
   Press MODE key
   Use the down
    ARROW key and
    select a+bi
   Press ENTER.
Adding Complex Numbers
    Add the two complex
     numbers:
         (2+3i ),(-1+4i)
    Locate the i key
    (Press 2ND then .)
    Type:
      (2 + 3i) + (-1 + 4i)
    Press ENTER.
    The sum is (1 + 7i)
    DONE
Subtracting Complex Numbers
    Subtract the two
     complex numbers:
         (2+3i ),(-1+4i)
    Locate the i key
    (Press 2ND then .)
    Type:
      (2 + 3i) - (-1 + 4i)
    Press ENTER.
    The difference is (3 - i)
    DONE
       Multiplication of Complex
                Numbers
    Multiply the two
     complex numbers:
         (2+3i ),(-1+4i)
    Locate the i key
    (Press 2ND then .)
    Type:
      (2 + 3i) (-1 + 4i)
    Press ENTER.
    The product is
      (-14 + 5i)
    DONE
             Division of Complex
                   Numbers
    Divide the two complex
     numbers:
           (2+3i ) by (-1+4i)
    Locate the i key
    (Press 2ND then .)
    Type:
      (2 + 3i) / (-1 + 4i)
    Press ENTER. Your answer
     will be in decimal form. Use
     the MATH key to convert
     it to fraction form.
    The quotient is
      (10/17 – 11/17i )
    DONE

								
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