KmPlot/Using Sliders
A main feature of KmPlot is to visualize the influence of parameters to the curve of a function.
Moving a Sinus Curve
Let's see, how to move a sinus curve left and right:
 Create a new Cartesian plot.
 Enter the equation
f(x,a) = sin(xa)
 Check the option and choose from the drop down list.
 To make the available sliders visible, check
Now you can move the slider and see how the parameter value modifies the position of the curve.

Input

Show sliders option

Slider window
Trajectory of a Projectile
Now let's have a look at the maximum distance of a projectile thrown with different angles. We use a parametric plot depending on an additional parameter which is the angle.
 Define a constant v_0 for the starting velocity.
 Create a new parametric plot
 Enter the equations
f_x(t,α) = v_0∙cos(α)∙t f_y(t,α) = 2+v_0∙sin(α)∙t−5∙t^2
 Check the option and choose from the drop down list.
 To make the available sliders visible, check
Now you can move the slider and see how the distance depends on the parameter value.