bishboria

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

jo

JavaScript Crypto Libraries

List some crypto libraries for JavaScript out there. Might be a bit out dated. Scroll to the bottom.

WebCryptoAPI

http://www.w3.org/TR/WebCryptoAPI/

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption. Additionally, it describes an API for applications to generate and/or manage the keying material necessary to perform these operations. Uses for this API range from user or service authentication, document or code signing, and the confidentiality and integrity of communications.

jorendorff

""" Usage: python diff.py FILE1 FILE2

A primitive `diff` in 50 lines of Python.
Explained here: http://pynash.org/2013/02/26/diff-in-50-lines.html
"""

def longest_matching_slice(a, a0, a1, b, b0, b1):
    sa, sb, n = a0, b0, 0

    runs = {}

RicoP

window.usesNoAdBlocker = true; 

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx

wutali

module Vagrant
  module Provisioners
    class Fabric < Base
      class Config < Vagrant::Config::Base
        attr_accessor :fabfile_path
        attr_accessor :fabric_path
        attr_accessor :python_path
        attr_writer :tasks

        def _default_fabfile_path

ehamberg

C/C++ Pointer Declaration Syntax – It makes sense!

I never really liked the way pointers are declared in C/C++:

int *a, *b, *c; // a, b and c are pointers to int

The reason is that I am used to reading variable declarations as MyType myVar1, myVar2, myVar3; and I always read “int*” as the type “integer pointer”�. I therefore wanted the following

int* a, b, c; // a is a pointer to int, b and c are ints

azproduction

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

e000

##########################################################
# How to NEVER use Lambdas. An inneficient and yet educa-#
# tonal guide to the proper misuse of the lambda constru-#
# ct in Python 2.x.     [DO NOT USE ANY OF THIS EVER]    #
#                                   by: e000 (13/6/11)   #                 
##########################################################

## Part 1. Basic LAMBDA Introduction ##
# Well, it's worth diving straight into what lambdas are.
# Lambdas are pretty much anonymous "one line" functions

madrobby

Implementation of the Luhn 10 algorithm to check validity of credit card numbers. See http://en.wikipedia.org/wiki/Luhn_algorithm for details on the algorithm.

var validCreditCard = function(a,b,c,d,e){for(d=+a[b=a.length-1],e=0;b--;)c=+a[b],d+=++e%2?2*c%10+(c>4):c;return!(d%10)};

validCreditCard('378282246310005'); //=> true
validCreditCard('378282246310006'); //=> false

// some numbers to test with
// 378282246310005 371449635398431 378734493671000