- A parametric curve in [math]\Re[/math]^2 is a set of equations x=x(t),y=y(t) and z=z(t) that trace a curve C in 3D graphics at the parameter t varies.[br]-In this applet i draw a curve f(x)=(t cost, t sint,t) with parameter 't'.

Draw a curve (t cost,t sint, t).

-Move the slider 't' then in the applet there move a point .the moving point show the curve where the red line represent the parametric curve.

To draw a curve (t cost ,t sint ,t)in the 3D graphics you can follow the following construction steps:-[br]1.Open new GeoGebra window and view the 3D graphics.[br]2. Create a number slider 't' with min-0,max-2 Pi and increment-0.01.[br]3. Input curve(t cost,t sint,t,t,0,2Pi) by using input tool.[br]4.Input a(t) by using input tool.[br]5. Enhance your construction by using object properties.