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Subject: Re: Hello!
Date: Sun, 19 Jan 2025 19:17:09 +0100
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Am 19.01.2025 um 18:16 schrieb guido wugi:
> Op 19/01/2025 om 16:32 schreef Richard Hachel:
>> Le 19/01/2025 à 15:18, sobriquet a écrit :
>>>> https://www.desmos.com/calculator/kijg1kvt75
>>>
>>> It's an interactive demonstration
>>
>> Basée sur une équation fausse.
>>
>> On tourne en rond.
> 
> Not "on", but "only" you ;)
> 
> The definition of "i" is simple: it's a solution of the equation [x^2 = -1].

If there is such a solution. :-P

Actually, there are 2 such solutions in C. So which one is i?

Hence I'd perefer tp claim that i is a number such that i^2 = -1. (-i is 
another one.)

> So it's clear from the start that it's not a member of the real number line [...]

Right.

> It's simply some "other number" outside the real number line, one 
> creating its own number line.

I guess you mean ix (with x e IR). Right.

> What's there more to brood on?