Mississippi

 Louisiana

US$3

US$3

US$14,174,342.34 (equivalent to $16,687,700 in 2023)

 Mississippi

Mississippi

 Alabama

 Mississippi

i, i/k-plane: i  j = k

1/j-plane: 1  j = j, j/k-plane: j  i = -k

Graphical representation of products of quaternion units as 90° rotations in the planes of 4-dimensional space spanned by two of {1, i, j, k}. The left factor can be taken as rotated by the right.
  • In red: