Shulou(Shulou.com)06/03 Report--

The method of drawing function image by tracing point method is not limited to a certain function, but can be applied to draw the image of any function. Taking the function y=x3 as an example, the method of drawing function images by using geometric Sketchpad to draw points is introduced in detail.

The specific steps are as follows:

1. Execute the draw-define coordinate system command, create a new coordinate system, and label the origin coordinates to O.

two。 Select the x-axis of the coordinate system, execute the "Construction"-"points on the axis" command, and construct point B.

3. Select point B, execute the "measure"-Abscissa command, and measure the Abscissa xB of point B.

4. Select the Abscissa xB of point B, execute the "measure"-"calculate" command, and calculate the value of xB3 in the pop-up New calculation dialog box.

5. Select the Abscissa xB of point B and the measure xB3 of point B in turn, execute the "draw"-"draw point (xmemy)" command, and draw point C (xB,xB3).

6. Select point C and point B in turn (the order must not be wrong), execute the "Construction"-"track" command, you can draw the image of the function y=x3, and execute the "draw"-"hide mesh" command to hide the grid in the coordinate system.

7. Just execute the File-Save command.

The above content introduces the use of geometric Sketchpad to draw points to draw function images, mainly to measure the coordinates of points, a lot of contact, I believe we will be able to master the drawing skills.

More geometric Sketchpad tutorials: http://www.jihehuaban.com.cn/template.html

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