Install WinGet (https://www.microsoft.com/p/app-installer/9nblggh4nns1#activetab=pivot:overviewtab) via store
- Search form Developer
- Inside System / For Developers
- Ensure Developer Mode is turned on.
Коллеги! Армия Путина вторглась в Украину под предлогом «денацификации» и ведёт там грязную войну. У многих из нас есть коллеги из Украины, с которыми можно пообщаться и убедиться в том, что никакого «освобождения» от Путина им не нужно.
Многим из нас сейчас страшно. Но открытое письмо нашей индустрии против этой войны собрало уже более 30 000 подписей. Нас много, и мы уверены, что это не предел.
Правительству тоже страшно: страшно потерять нас. А значит, действия каждого из нас могут помочь прекратить это безумие.
import fs2.concurrent.Queue | |
import cats.implicits._ | |
import cats.effect.Concurrent | |
import cats.effect.concurrent.Ref | |
def groupBy[F[_], A, K](selector: A => F[K])(implicit F: Concurrent[F]): Pipe[F, A, (K, Stream[F, A])] = { | |
in => | |
Stream.eval(Ref.of[F, Map[K, Queue[F, Option[A]]]](Map.empty)).flatMap { st => | |
val cleanup = { | |
import alleycats.std.all._ |
#!/bin/bash | |
# Vadim Zaliva lord@crocodile.org | |
# based on https://gist.github.com/hadess/6847281 | |
if [[ $EUID -ne 0 ]]; then | |
echo "This script must be run as root" 1>&2 | |
exit 1 | |
fi |
tl;dr I want to use Rust to program robots. Help me find the best core libraries to build on.
Robotic systems require high performance and reliability, but also have enormous complexity in terms of algorithms employed, number of subsystems, embedded hardware control, and other metrics. Development is mostly split between C++ for performance and safety critical components, and MatLab or Python for quick research or task iteration.
/* | |
For any 1<k<=64, let mask=(1<<k)-1. hash_64() is a bijection on [0,1<<k), which means | |
hash_64(x, mask)==hash_64(y, mask) if and only if x==y. hash_64i() is the inversion of | |
hash_64(): hash_64i(hash_64(x, mask), mask) == hash_64(hash_64i(x, mask), mask) == x. | |
*/ | |
// Thomas Wang's integer hash functions. See <https://gist.github.com/lh3/59882d6b96166dfc3d8d> for a snapshot. | |
uint64_t hash_64(uint64_t key, uint64_t mask) | |
{ | |
key = (~key + (key << 21)) & mask; // key = (key << 21) - key - 1; |
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
/* | |
Copyright 2018 Viktor Klang | |
Licensed under the Apache License, Version 2.0 (the "License"); | |
you may not use this file except in compliance with the License. | |
You may obtain a copy of the License at | |
http://www.apache.org/licenses/LICENSE-2.0 | |
Unless required by applicable law or agreed to in writing, software |