How to construct dynamic analytic formula with geometrical artboard parameters

Geometry artboards provide rich and convenient creative functions so that users can freely write their own needs of the teaching courseware, is one of the most excellent teaching software. It mainly uses points, lines, circles as the basic elements, through the transformation of these basic elements, construction, measurement, calculation, animation, tracking track, etc., the construction of other more complex graphics. The following is an example of the dynamic analytic Y=a (x-h) 2+k of geometric artboards using parameters to see how the dynamic analytic formula is implemented by parameters.

The steps are as follows:

1, the new three parameters A, H, K, the default selection can be.

Create a, H, k three parameters with "data"--"New parameter"

2. Draw the image of the function. Select drawing--Draw new function, pop up the new Function dialog box, and in the New Function dialog box, click a=1.00 in the Work area, *, (, "X", "-", "h=1.00" in the workspace, ")", click "^", "2", "+", "k=1.00" in the workspace. Click OK. A coordinate system and a function's image appear in the drawing area.

To input parameter parsing in the Function editor window

tip: Change the values of the parameters A, H, K, and the shape and position of the parabola accordingly.

In the function editor, the point "equation", the optional analytic formula is "y=" form.

3, the establishment of dynamic analytic type. Using the Text tool, enter in the drawing area, y=, click the value of the parameter a,a to jump to the back of y=. After y=1.00 continue to enter "(X", click the parameter h with the mouse, then the value of H will jump to the back of X, continue to enter ")", here the index 2 can be found in the "text field" in the symbol panel (if there is no text field in the drawing area, you can click "Show"-"Show text Toolbar") Enter "+" and the value of the k,k with the mouse click on the parameter will jump to the last face. Finally, a dynamic function parsing method can be obtained.

Using the text tool to establish the analytic formula of dynamic function

4, change three parameters, can simultaneously control the analytic formula and the change of image.

Change of parameter value control analytic formula and its image change

In this paper, we introduce the analytic method of the dynamic geometry artboard using the parameters, and use this method to see the relationship between function analytic style and image. The common geometric artboard function images can be implemented using function functions, such as parametric equations of geometric artboards, and the specific tutorials can refer to how the geometric artboards draw parametric equation curves.

The above is reproduced content, the original is: http://www.jihehuaban.com.cn/changjianwenti/dongtai-jiexishi.html

How to construct dynamic analytic formula with geometrical artboard parameters