Sujet : Re: Division of two complex numbers
De : james.g.burns (at) *nospam* att.net (Jim Burns)
Groupes : sci.mathDate : 20. Jan 2025, 19:38:56
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <ad33497d-0c22-4eb6-96a5-601d9b16217c@att.net>
References : 1 2
User-Agent : Mozilla Thunderbird
On 1/20/2025 1:33 PM, Jim Burns wrote:
On 1/20/2025 6:02 AM, Richard Hachel wrote:
[...]
[...]
>
x + iy = (1 + i0)/(c + id)
x + iy = (c - id)/(c²-i²d²)
If i² ≠ 0 then
then some c + id ≠ 0 + i0
do not have inverses.
Better:
If i² ≥ 0 then
then some c + id ≠ 0 + i0
do not have inverses.