Specific methods for drawing function graphs on intervals using geometric sketchpad

Want to draw the function graph on the interval in the geometric sketchpad, but don’t know the specific method? Don't worry, PHP editor Xiaoxin has brought you a detailed tutorial. This article will guide you step by step on how to use the geometric sketchpad to draw accurate and beautiful function graphs. By reading the details below, you will master the skills of drawing function graphs in the geometric sketchpad and easily solve this problem.

1. Select [Draw] - [Define Coordinate System] to construct a rectangular coordinate system, and select [Draw] - [Hide Grid]. Select the [Chart]-[Draw Point] menu command, enter (π, 0) in the pop-up dialog box, click [Draw], and a point will be displayed in the operation area. Continue to enter (-π, 0) in the dialog box, click [Draw], [OK].

2. Right-click the selected point, select [Show labels of drawn points], and change them to [π] and [-π] respectively. Select point π and point -π and press the shortcut key [Ctrl+L] to draw a line segment between the two points.

3. Use the point tool to draw any point on the line segment, labeled E. Click [Measurement] - [Abscissa] to measure the abscissa value of point E, click [Edit] - [Presets], select the [Radian] unit in the drop-down list of the [Angle] tab in the dialog box, 【Sure】.

4. Select [Data] - [Calculation] menu command, enter [2], [*], [sin], [1] in the [Function] drop-down list in sequence. , [÷], [2], [xE], [+], [π], [÷], [6] in the [Value] drop-down list, click the [OK] button, and the calculation result will be displayed in the operation area.

5. Select the measured value and calculated value, click [Draw] - [Draw (x, y)] menu command to draw a point F. Select point E and point F, select [Construction] - [Trajectory] to draw the image of the function within the interval.

6. Select the two points (π, 0) and (-π, 0) and the x-axis, select the [Construction]-[Vertical Line] command to draw the x-axis Two vertical lines, then hold down the [Shift] key, right-click and select [Thin Line], [Dotted Line] to set the vertical line to a dotted line.

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