3D visualization of a unit sphere warped by a 3 by 3 matrix into an ellipsoid, with a power iteration search animating a vector converging to the direction of maximum stretch, shown alongside the live numeric matrix multiplication, whose result's length equals the operator norm
drag to rotate. orange = current search vector x, teal = its image Ax
A times the current search vector
1.500.400.10
0.200.500.30
0.100.201.00
×
0.00
0.00
0.00
=
0.00
0.00
0.00
∥Ax∥ =
0.00