Introduction to the method of customizing function size in Geometric Sketchpad

How to set the size of the custom function of the geometric sketchpad? Don't worry, PHP editor Zimo brings you a tutorial on setting the size of the custom function of the geometric sketchpad. Friends who want to know more, come and take a look!

1. Create a new coordinate system, use the point tool to construct two points A and B on the x-axis, and construct line segment AB. Select line segment AB, select [Construction] - [Point on Object], and construct point P on line segment AB. The abscissa xp of the measurement point P.

2. Select [Data] - [New Function], in the [New Function] editor, edit the function [f(x)=x3-2x-1], click 【Sure】. Select [Data] - [Calculation], in the calculation editor, after clicking the function analytical expression f(x), click in the measurement value of the abscissa coordinate of P in the brackets. Get the value of the function with xp as the independent variable.

3. Select the measurement value xp and the calculated value f(xp) in sequence, select [Drawing] - [Drawing Point], and you will get a drawing point Q.

4. Select points P and Q, select [Construction] - [Trajectory], and you will get a trajectory. This trajectory is the function graph of the independent variable within the range AB. Change the position of A and B, and the size of the [image] will change accordingly.

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