Hi,

"Don Pearce" wrote in message
...
On 10 Mar 2006 07:23:35 -0800, " wrote:

What is this "i" thing? I know all about "j".

My exam board (way back when there were 'O' levels)
had some problems with this - people who took 'A'
levels in both maths (where it was 'i') and physics (where
it was 'j') often got them mixed up, and lost marks. There
was a minor rebellion, and in the end the mathematicians
lost. The square root of -1 was termed "j" from then on.

It's probably a moot point now - the last Physics A level
paper I looked at required no knowledge of either. a.c.
electricity is now the domain of Universities, it would seem.

Regards,

Glenn.