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@sebjai
sebjai / Execution_Limit_MarketOrder.ipynb
Last active January 29, 2025 11:08
Implementation of optimal execution using limit and market orders from Chap 8.5 of Algorithmic and High-Frequency Trading by Cartea, Jaimungal, & Penalva (2015) Cambridge University Press
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@remojansen
remojansen / class_decorator.ts
Last active September 14, 2023 14:54
TypeScript Decorators Examples
function logClass(target: any) {
// save a reference to the original constructor
var original = target;
// a utility function to generate instances of a class
function construct(constructor, args) {
var c : any = function () {
return constructor.apply(this, args);
}
@cheuerde
cheuerde / glibc_install.sh
Last active April 24, 2024 08:06
Install GNU libc version parallel to existing system
# Claas Heuer, August 2015
#
# urls:
# http://stackoverflow.com/questions/847179/multiple-glibc-libraries-on-a-single-host
# http://www.gnu.org/software/libc/download.html
cd $HOME
mkdir glibc_update
cd glibc_update
@karpathy
karpathy / min-char-rnn.py
Last active April 14, 2025 14:23
Minimal character-level language model with a Vanilla Recurrent Neural Network, in Python/numpy
"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np
# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)
@pablosalgadom
pablosalgadom / secret_key_base
Last active March 11, 2022 18:17
app error: Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml` (RuntimeError)
So i was using Rails 4.1 with Unicorn v4.8.2 and when i tried to deploy my app it doesn't start properly and into the unicorn.log file i found this error message:
"app error: Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml` (RuntimeError)"
After a little research i found that Rails 4.1 change the way to manage the secret_key, so if we read the secrets.yml file located at exampleRailsProject/config/secrets.yml (you need to replace "exampleRailsProject" for your project name) you will find something like this:
# Do not keep production secrets in the repository,
# instead read values from the environment.
production:
secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
@squarism
squarism / happy_golang_libraries.md
Last active November 4, 2017 08:57
Happy Time Golang Libraries

Happy Time Go Libraries.

Another curated list like awesome-go.
Not complete. Not authoritative. Not cupcake.
Send suggestions: @squarism :)
☆ = Github stars (in November 2016)


Adapters and Drivers

@melekes
melekes / Makefile
Created March 21, 2014 09:34
Colored Makefile for Golang projects
NO_COLOR=\033[0m
OK_COLOR=\033[32;01m
ERROR_COLOR=\033[31;01m
WARN_COLOR=\033[33;01m
DEPS = $(go list -f '{{range .TestImports}}{{.}} {{end}}' ./...)
deps:
@echo "$(OK_COLOR)==> Installing dependencies$(NO_COLOR)"
@go get -d -v ./...
@echo $(DEPS) | xargs -n1 go get -d
@branneman
branneman / better-nodejs-require-paths.md
Last active April 11, 2025 10:39
Better local require() paths for Node.js

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

@dashed
dashed / github-pandoc.css
Created September 26, 2013 13:42
GitHub-like CSS for pandoc standalone HTML files (perfect for HTML5 output). Based on Marked.app's GitHub CSS. Added normalize.css (v2.1.3) in the prior to GitHub css.
/*! normalize.css v2.1.3 | MIT License | git.io/normalize */
/* ==========================================================================
HTML5 display definitions
========================================================================== */
/**
* Correct `block` display not defined in IE 8/9.
*/
@ChuckJHardy
ChuckJHardy / Readme.md
Last active March 22, 2025 00:06
ZeroMQ + Node.js + Socket.io + UI for sending message from Ruby to a Javascript UI running on Node.js

Install the following requirements:

brew info zeromq
npm install zmq
npm install socket.io
gem install ffi-rzmq

Within the app directory run the following commands in different panes.

ruby worker.rb