The equations are solved, the attractor created.
X, Y, and Z are all quite elated.
But during the night, devious crooks steal the show.
taking Z and X, leaving Y crying "Noooo!"
But you arrive on the scene donning Sherlock Holmes' cap,
claiming you can recover Z and X in a snap.
All you must do is find τ (the Y-lag)
to bring X and Z slowly out of the bag.
For they are attracted to Y don't you know.
The picture appears coming out of the snow.
Choose a system (Lorenz or Rossler) and a time lag for Y.
Try to recreate the 3-D Chaotic attractor from only one variable.