SimReal: Mathematics - Conic - Parabola UiA Logo


[SimReal] [Library] [Help] [Reflection Paraboloide]
Parabola

This application shows some properties of a parabola.
As default you will see the graph of y = (1/4p)*x^2 = 0.125x^2,
a point P on the parabola (defult in origin), the focus point (default (0,2))
and the directrix (default y = -2).

Use the big scrollbar in the bottom of the simulation window
to move the point P along the graph.
Use the scrollbar in the control window
to change the position of the focus point F.

Control objects:

Function y = : The arithmetic expression of the function
x =          : The current x-value of the point P on the graph
y =          : The current y-value of the point P on the graph

Graph        : Show/hide the graph
P            : Show/hide the point P on the graph
F            : Show/hide the focus point F
Directrix    : Show/hide the directrix
Line FPQ     : Shoe/hide the line FP and the line PQ

Beam         : Show/hide vertical lines reflected in the graph
Tangent      : Show/hide the tangent of the graph at point P
Normal       : Show/hide the normal of the graph at point P

Focus Point  : Change the position of the focus point F

Axis         : Show/hide the axis in the graph window
Grid         : Show/hide the grid in the graph window
Coord        : Change the unit value on the x- and y-axis
Origin       : Click in the window to change the origin

Reset        : Set the graph back to default position
  

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