arvearve

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?

filsinger

#include <regex>
#include <string>
#include <vector>

std::vector<std::string> Split(const std::string& str, const std::string& regex)
{
	return {std::sregex_token_iterator(str.begin(), str.end(), std::regex(regex), -1), std::sregex_token_iterator()};
}

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

tugstugi

#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/videodev2.h>

int main() {
	int N = 100;
	char* deviceName = "/dev/video0";
	int fd = open(deviceName, O_RDWR);

matthewhudson

A good commit message looks like this:

Header line: explaining the commit in one line

Body of commit message is a few lines of text, explaining things
in more detail, possibly giving some background about the issue
being fixed, etc etc.

The body of the commit message can be several paragraphs, and
please do proper word-wrap and keep columns shorter than about

zbyhoo

#!/bin/bash

if [ "$#" != "1" ]
then
   echo wrong number of arguments
   echo Usage: $0 \<filename\>
   echo filename - file with build output
   exit 1
else
   cat $1 | grep "warning:" | sort | uniq -c | sort -nr | awk '{print $0}{total+=1}END{print "Total number of warnings:\n"total}'

bellbind

"""Genetic Algorithmn Implementation
see:
http://www.obitko.com/tutorials/genetic-algorithms/ga-basic-description.php
"""
import random

class GeneticAlgorithm(object):
    def __init__(self, genetics):
        self.genetics = genetics
        pass