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TI 84 Calculator

TI 84 Calculator. Macon State College Mary Dwyer Wolfe, Ph.D. Gaston Brouwer, Ph.D. July 2009 http://calculator.maconstate.edu. PART 1. TI 84 Calculator . The Calculator at First Glance / Basics How to Enter Common Mathematical Expressions Squares, Square Roots, Radicals

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TI 84 Calculator

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  1. TI 84 Calculator Macon State College Mary Dwyer Wolfe, Ph.D. Gaston Brouwer, Ph.D. July 2009 http://calculator.maconstate.edu

  2. PART 1

  3. TI 84 Calculator • The Calculator at First Glance / Basics • How to Enter Common Mathematical Expressions • Squares, Square Roots, Radicals • π, e, Exponential and Logarithmic Functions • Scientific Notation • Different Mode Settings • Graphing a Function • Creating a Table of Values For a Function • Common Error Messages

  4. The Calculator at First Glance Buttons for graphing Buttons to access secondary commands Buttons for navigating menus and graphs Basic operations

  5. Basics • To turn the calculator on: • To turn the calculator off: • To clear the screen: • To delete an entry: • To insert an entry:

  6. Resetting the Memory

  7. Entering simple mathematical expressions Evaluate: We can use the key: Or we can use the key: Notice the use of the key!

  8. Square roots Suppose that we want to take the square root of the answer we just obtained. We do not have to retype the answer if we use the ANS command.

  9. Radicals, π, and the menu (Quit)

  10. Exponential and Logarithmic functions

  11. Fractions and scientific notation If the denominator of a fraction is not too large, the calculator can simplify it for you. Scientific notation:

  12. The menu Normal or Scientific Notation Number of Decimals Degree Mode Types of Functions* Graph Drawing Mode Sequential or Simultaneous Graphing Real or Complex (Full) Screen Mode * Regular, Parametric, Polar, Sequential

  13. REAL Versus a+bi

  14. Graphing Functions Suppose we want to graph the equation To enter the variable, use the key

  15. Setting the Viewing Rectangle [-10,10,1] by [-10,10,1] Ymax Yscl Xmin Xmax Xscl Ymin [-3,3,1] by [-3,3,1], … or: [-6,6,2] by [-3,3,1], etc.

  16. Another Graph Graph: Parabola, Vertex = (20,30), Opening downward

  17. Different zoom options 5: ZSquare adjusts the X range so that 1 inch on the Y-axis equals 1 inch on the X-axis. 6: ZStandard sets the window to [-10,10,1] by [-10,10,1]

  18. Application: Perpendicular Lines Graph the lines and

  19. Drawbacks to Calculator Graphing • Limited viewing window. How do we know we are seeing all interesting features of the graph? • Limited resolution. • Due to the limited resolution, the TI84 doesn’t handle • certain graphs very well. [0,10,1] by [-10,10,1]

  20. Tracing a Function

  21. Finding zeros

  22. Creating a Table of Values ignore Do once: Ask Auto

  23. Common Error Messages Error Possible source Solution vs. subtraction only! or Xmin > Xmax adjust or Ymin > Ymax Lists L1 and L2 are not the same length or empty Turn off STAT PLOT

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