Quote:
Originally Posted by sanctus
Why doesn't it matter?
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In the strictest sense there is only one imaginary unit and the other is its additive inverse.
However, because the constructive definition of the unit doesn't distinguish between them, it's true that you could exchange them; this is an automorphism of
and, unlike changing sign in
, not just of the additive group but of the actual field. This automorphism is, of course, complex conjugation.
In any case, good question.
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Inutil insegnà al mus, si piart timp, in plui si infastidìs la bestie.
Hypography Forum PITA...... er, Administrator.
