Re: Hello!

Am 19.01.2025 um 12:04 schrieb Moebius:

Am 19.01.2025 um 08:51 schrieb Richard Hachel:
 

But nevertheless, I continue to certify that there is an extremely fine mathematical error, at the moment when physicists pose
i²=-1 to quickly simplify what seems a convenient operation.

 Nope. i² = -1 was not invented/introduced by physicists, but by mathematicians.
 

Because as long as we do not know what i is worth, which can be BOTH equal to 1 or -1 in this imaginary mathematics, we [...]

 i is neither 1 nor -1.
 Hint: If it were 1 or -1 we would get i² = 1 (in bot cases).

Of course, such a number does not exist in the real number field. But there is such a number in the complex number field:
"In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted i, called the imaginary unit and satisfying the equation i² = -1; ..."
See: https://en.wikipedia.org/wiki/Complex_number

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