Re: Hello!

Liste des GroupesRevenir à s math 
Sujet : Re: Hello!
De : invalid (at) *nospam* example.invalid (Moebius)
Groupes : sci.math
Date : 19. Jan 2025, 17:04:38
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vmj7qm$2b2vv$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9
User-Agent : Mozilla Thunderbird
Am 19.01.2025 um 16:50 schrieb Moebius:
Am 19.01.2025 um 16:39 schrieb Moebius:
Am 19.01.2025 um 16:30 schrieb Richard Hachel:
Le 19/01/2025 à 15:28, Moebius a écrit :
Am 19.01.2025 um 12:37 schrieb Richard Hachel:
>
Complex numbers can be defined as (ordered) pairs of real numbers.
>
Then
         i := (0, 1) .
>
Hence i =/= 1 and i =/= -1.
>
No.
>
Yes.
 Hint: Then (in this context) i * i = (0, 1) * (0, 1) = (-1, 0), the latter is "identified" with -1, hence we may write:
                   i^2 = -1 .
 That's exactly what we want.
Hint: No "extremely fine mathematical error" at all.
On the other hand, this one is an "extremely severe mathematical error":

i = 1 = -1
>
Hear, hear, hence 1 = -1 now?
>
Fuck off, idiot!
 

Date Sujet#  Auteur
18 Jan 25 * Hello!36Richard Hachel
19 Jan 25 +* Re: Hello!30sobriquet
19 Jan 25 i+* Re: Hello!25Richard Hachel
19 Jan 25 ii+* Re: Hello!16Moebius
19 Jan 25 iii+- Re: Hello!1Moebius
19 Jan 25 iii`* Re: Hello!14Richard Hachel
19 Jan 25 iii `* Re: Hello!13Moebius
19 Jan 25 iii  `* Re: Hello!12Richard Hachel
19 Jan 25 iii   +- Re: Hello!1Python
19 Jan 25 iii   +* Re: Hello!9Moebius
19 Jan 25 iii   i+* Re: Hello!7Moebius
19 Jan 25 iii   ii`* Re: Hello!6Moebius
19 Jan 25 iii   ii `* Re: Hello!5Python
20 Jan 25 iii   ii  +* Re: Hello!2Moebius
20 Jan 25 iii   ii  i`- Re: Hello!1Chris M. Thomasson
20 Jan 25 iii   ii  `* Re: Hello!2Richard Hachel
20 Jan 25 iii   ii   `- Re: Hello!1Python
20 Jan 25 iii   i`- Re: Hello!1Richard Hachel
19 Jan 25 iii   `- Re: Hello!1Moebius
19 Jan 25 ii`* Re: Hello!8sobriquet
19 Jan 25 ii `* Re: Hello!7sobriquet
19 Jan 25 ii  `* Re: Hello!6Richard Hachel
19 Jan 25 ii   +* Re: Hello!3guido wugi
19 Jan 25 ii   i+- Re: Hello!1Moebius
20 Jan 25 ii   i`- Re: Hello!1Richard Hachel
19 Jan 25 ii   `* Re: Hello!2sobriquet
20 Jan 25 ii    `- Re: Hello!1Richard Hachel
19 Jan 25 i+- Re: Hello!1Ross Finlayson
20 Jan 25 i+* Re: Hello!2Jim Burns
20 Jan 25 ii`- Re: Hello!1Richard Hachel
19 Jan 25 i`- Re: Hello!1Richard Hachel
30 Jan 25 `* What is i ? was: Hello!5Jim Burns
30 Jan 25  +- Re: What is i ? was: Hello!1Richard Hachel
31 Jan 25  `* Re: What is i ? was: Hello!3guido wugi
31 Jan 25   `* Re: What is i ? was: Hello!2Jim Burns
31 Jan 25    `- Re: What is i ? was: Hello!1guido wugi

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