17 Jul
2005
17 Jul
'05
11:24 p.m.
Daryle Walker wrote:
This is for the "ll" function defined for quaternions and octonions. The function returns the 1-norm of its argument. Does anyone know what the "ll" name stands for? I finally figured out that "sup" (the infinity-norm) most likely stands for "supremum". (BTW, "abs" is the 2-norm. The "norm" function isn't actually in this system, despite the name!)
Hmmm... My guess from looking at the name 'll' would have been ll == length * length (frobenius norm), but it's not the 1-norm ;-(. Regards, Tobias