Editing an Equation Curve
- 
                Click the Equation tool 
 in the Design tab
             - 
                The Select Curve tool guide 
 is active
             - Select the curve to edit
 - 
                (Optional) Click the Set Grid Location tool guide 
 and select a different sketch plane
             - Edit the equation as needed in the Options panel
 - Click Complete to create the equation curve
 
Editing an Equation Curve in 3D is limited to the range of the equation. For example, if a Sine curve has a range of 4π, you can Pull an end to anywhere within the that range. You cannot make it longer (for example, 6π)
If the curve has been Split, the ends of any of the pieces can be Pulled within the range of the original equation.