Discussion: new operators for numerical computation

[Robin Becker]

In article <m2g0p4oljh.fsf at spiff.home.com>, Tim Hochberg
<tim.hochberg at ieee.org> writes
>Robin Becker <robin at jessikat.fsnet.co.uk> writes:
...
>
>> 
>> the lie product (or bracket) has applications in sensitivity analysis
>> and other more exotic stuff in differential geometry
>> 
>> [A,B] = AB - BA
>
>It's the commutator! Why didn't anyone say so earlier. 
>
>-tim
>
well you call it the commutator, but I never called it that in the '70s
when I last used it seriously.
-- 
Robin Becker