Changing Constants

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When the graph tool detects a constant in a function, it automatically adds a constant controller to the bottom of its screen.  FX  Graph adds one constant controller for each constant.

 

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Let's look at a constant controller in more detail.  The first edit box allows you to explicitly set the value of the constant.  You can type in any value for the constant - including e or pi.  For example, you can set the value of a to be pi/2.  The slider allows you to modify the constant interactively.  As you slide the slider left or right, the constant will be incremented or decremented by the amount shown as delta.

 

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The second edit box allows you to set the Delta for the constant - how much it changes each time you move the slider (or draw a family of curves or animate).  You can type any value in for delta - including values based on e or pi.

 

 

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The final two buttons allow you to draw families of curves or animate a graph.  These are discussed in the next sections.

 

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