1. Mr. Peter Richard Complex Numbers Using the TI 83 Plus Calculator
Granville Central School
Taught by
Mr. Peter Richard

2. Setting the Calculator
Press MODE key
Use the down ARROW key and select a+bi
Press ENTER.

3. 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

4. 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

5. 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
( i)
DONE

6. 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