41 lines
1.6 KiB
Markdown
41 lines
1.6 KiB
Markdown
---
|
|
aliases:
|
|
Tags:
|
|
- daily
|
|
nägelkauen:
|
|
Dehnen:
|
|
Sport:
|
|
Ernährung:
|
|
---
|
|
# 2024-11-05
|
|
|
|
[[2024-11-04]] <--> [[2024-11-06]]
|
|
|
|
|
|
Error generating daily quote
|
|
|
|
___
|
|
## Notes
|
|
|
|
### But what are error codes by 3Blue1Brown
|
|
- Valid messages are a subset of all possible messages
|
|
- If you receive an unvalid message you want to find the nearest valid member
|
|
- You always have a sender and a receiver. This can also be storage (past is sender, future is receiver)
|
|
- Hamming Codes:
|
|
- parity check: detect errors, but not correct it. count positive bits --> odd or even? Parity bit.
|
|
- use parity checks in subset of messages to find out exactly
|
|
- ![[Pasted image 20241105153834.png]]
|
|
- ![[Pasted image 20241105154101.png]]
|
|
- ![[Pasted image 20241105154304.png]]
|
|
- Extended Hammingcode: use the 0th bit as a total parity check --> detect if 2 or more errors
|
|
- Its' magic! The parity bits of the address of the error. ![[Pasted image 20241105155616.png]]
|
|
- they are the orthogonal span vectors of this space
|
|
- You can calculate everything extremely quickly with an XOR function: ![[Pasted image 20241105160145.png]]
|
|
- Different perspectives are different to implement in hardware/software ![[Pasted image 20241105160637.png]]
|
|
- #book-idea Hamming: Art of science and engineering
|
|
|
|
|
|
|
|
___
|
|
## Reflection
|
|
Im Buch [[Utopien für Realisten by Rutger Bregman]] habe ich heute gelernt, dass Kapital mehr verdient als einfache Löhne und das das mit zunehmender Automatisierung noch mehr zu Gewicht kommt. Das heisst für mich selber werde ich nichts ändern. Ich werde weiterhin alles Geld das ich auf der Seite habe investieren und damit Aktien oder Immobilien kaufen. |