Ciro Santilli really liked the battle mode on this.
Something for the touts
. Source. We have everything and we have nothing
And some men do it in churches
And some men do it by tearing butterflies in half
and some men do it in Palm Springs
Laying it into butter-blondes with Cadillac souls
Ciro Santilli does it in his computers and in his labs!
Reduction of an elliptic curve over the rational numbers to an elliptic curve over a finite field mod p Updated 2025-02-26 +Created 1970-01-01
This construction takes as input:and it produces an elliptic curve over a finite field of order as output.
- elliptic curve over the rational numbers
- a prime number
The constructions is used in the Birch and Swinnerton-Dyer conjecture.
To do it, we just convert the coefficients and from the Equation "Definition of the elliptic curves" from rational numbers to elements of the finite field.
For example, suppose we have and we are using .
For the denominator , we just use the multiplicative inverse, e.g. supposing we havewhere because , related: math.stackexchange.com/questions/1204034/elliptic-curve-reduction-modulo-p
This is a family of computers. It was a big success. It appears that this was a big unification project of previous architectures. And it also gave software portability guarantees with future systems, since writing software was starting to become as expensive as the hardware itself.
A single line in the emission spectrum.
So precise, so discrete, which makes no sense in classical mechanics!
Has been the leading motivation of the development of quantum mechanics, all the way from the:
- Schrödinger equation: major lines predicted, including Zeeman effect, but not finer line splits like fine structure
- Dirac equation: explains fine structure 2p spin split due to electron spin/orbit interactions, but not Lamb shift
- quantum electrodynamics: explains Lamb shift
- hyperfine structure: due to electron/nucleus spin interactions, offers a window into nuclear spin
Ubuntu 23.04 install:
sudo apt install rbase
Hello world:
R -e 'print("hello world")'
Install a package, e.g. Bookdown:
sudo R -e 'install.packages("bookdown")'
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