• Continue dragging the point towards the minimum on the graph. When
you reach the minimum, a box with “minimum” will appear, along
with the coordinates of the minimum.
• Continue dragging the point towards the maximum on the graph. When
you reach the maximum, a box with “maximum” will appear, along
with the coordinates of the maximum.
Using Lists & Spreadsheets
You can create a table of values using a formula. For example, use the formula for the surface area of a
cylinder, SA = 2πr
2
+ 2πrh.
• Open a new Lists & Spreadsheet page.
• Set the calculator to Approximate mode. Refer to Setting
Auto/Approximate Mode.
• Cursor to the top of column A and type “rad” for the radius
values.Type “ht” for column B, and “sa” for surface area in column C.
Move to the cell below sa and type the formula for the surface area as
shown. Be sure to begin with an =.
To resize the columns so that you can see the entire formula:
• Press b. Select 1:Actions, then 2:Resize, and then 1:Resize Column Width. Use the left and right
cursor keys to set the desired width. Press · and then d.
To enter data:
• Move the cursor to cell A1, and type 1.
• Move the cursor to cell B1, and type 1.
The surface area of a cylinder with a radius of 1 unit, and a height of 1 unit, will be displayed. Similarly,
you can enter other radii and heights.
Plotting a Function
• Open a new Graphs & Geometry page.
• In the entry line, you will see f1(x) =. Enter the function and press ·.
The example shows x
2
+ 1.
Note that the function is displayed with its equation as a label. The entry
line has moved to function f2(x).
Look at the axes. This is the standard window for the TI-Nspire CAS.
To see, or change, the window settings:
• Press b. Select 4:Window, and then 1:Window Settings.
To change the appearance of the window:
• Press b. Select 2:View.
There are several options. For example, if you choose option 8:Show Axes End Values, you can display
the current range of each of the axes.
• Press the up cursor once. The function f1(x) will be displayed in the entry line.
©2009 MHR • Functions 11
Technology Master: Using a TI-Nspire CAS Graphing Calculator OS1.6
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