Wednesday, September 27, 2006

Cross Products in Wolf et al

While reading the article of Richards and Wolf (at the London Royal Society) and Born and Wolf's Principles of Optics I noticed something...

Since the publications by Wolf and friends (Richards, Born) are quite old (reflection and connection are even spelled reflexion and connexion) some notations might be confusing. One such notation is the cross product operator:

Usual:
A x B = C

Wolf et al:
A ^ B = C

Note the ^ symbol used in their texts actually extends down thus looking like an A without the "-" or like this /\ . You would also notice that superscripts are used to denote exponents.

I verified this by looking at the expression for Maxwell's equations (where curl is spelled out) and the Poynting Vector.

2 comments:

Anonymous said...

Too geeky but useful.

me said...

thanks