Abstract
We present a new way of proving that a computer-generated orbit for the chaotic attractor outside the periodic windows of the quadratic map can be shadowed for all time (i.e., there exist true orbits
which stay near a numerical orbit
for all time). This is done by computing a numerical orbit for a particular value of a and show that
The true orbits are found using slightly different maps
This technique can therefore be applied to other chaotic differential equation and discrete systems.