The operation process of creating W-shaped sharp wave function image using geometric sketchpad

New function f(x)=x-4·trunc(x/4). Open the geometric sketchpad, select [Draw] - [Draw New Function], enter the function expression in the function dialog box, click [Draw] to draw its image,

Create a new function g(x)=f(f(x) 4). Select [Draw] - [Draw New Function], enter the function expression in the function dialog box, and click [Draw] to draw its image, as shown in the figure.

Draw the image of the function h(x)=2|g(x)-1|-|g(x)-2| 2|g(x)-3|. Select [Draw] - [Draw New Function], enter the function expression in the function dialog box, and click [Draw] to draw its image.

Hide the functions f(x) and g(x) to get the sharp wave function image.

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