Comment by kaibee
1 day ago
ijk are standard in linear algebra for vector components.
> (And i and j? Which look so similar at a glance? Never. Never!)
This I agree with.
1 day ago
ijk are standard in linear algebra for vector components.
> (And i and j? Which look so similar at a glance? Never. Never!)
This I agree with.
What if not ijk? I know only uvw.
Pretend to be a physicist and use μ and ν.
i came from imaginary numbers which were extended to make quaternions.
i, j, k comes from FORTRAN's implicit types -- by default, names starting with I-N are integers and all other names are real.
this is much older ; Joseph Fourier was already using "i" and "j" for indices in the 1800s. See page 209: https://www.google.ca/books/edition/OEuvres_de_Fourier_Th%C3...
1 reply →