kai'o PA5 experimental cmavo

quaternion i

Works like ka'o (as a comma) and is isomorphic to (and might even be considered identical to/equivalent with) it. See also: ka'o, kei'o, koi'o, kau'o.

In notes:

kau'o (exp!)
generic algebra unit en
kei'o (exp!)
quaternion j
koi'o (exp!)
quaternion k