Tutorial Data Matters

To enter a data table using the keyboard,

Select New Data Table from the Work menu.
As an example, enter the following data by typing into the Data Table window:

-5 Enter -5 Enter

-3 Enter -3.2 Enter

-1 Enter -0.9 Enter

1 Enter 1.2 Enter

3 Enter 2.9 Enter

5 Enter 5

Here "Enter" means to press the Enter key (not the Return key).
Click the close box of the Data Table window and click the Yes button in the Add Data Table window. The data table will be added to the Work window.

To plot the data,

To fit the data with a least squares line,

To enter a data table using the mouse,

Plot any object in the Graph window or simply select Plot Axes from the Graph menu.
Click the Coordinate tool on the tool palette. It is the fourth tool from the left.
Click in the Graph window at the position where you want to enter a data point. If a curve has been plotted and the selected style of the point has a line through it (see the icon tool's pop-up menu), then the x-coordinate will be used to draw a point on the curve, otherwise, the point will be placed at the position of the click. Enter as many data points as you want. You can also hold down the mouse button and drag to enter a sequence of points.
When you are finished entering your data points, select Generate Table from Points from the Tools menu. A data table containing the points that you entered will be added to the Work window.

To generate a data table using the function f(x) = x^2 sin(x),

Enter and plot the function f(x) = x^2 sin(x) over the interval -5 x 5.
Select Data Generator... from the Tools menu. Enter the number of points that you want to generate or simply click OK to generate 10 points.
Select Overlay Plot from the Graph menu to plot the data on top of the plotted curve.