Skip to content

Instantly share code, notes, and snippets.

View rbsilva's full-sized avatar

Rodrigo Silva rbsilva

  • Campinas - SP Brasil
View GitHub Profile
@fnky
fnky / ANSI.md
Last active July 27, 2024 22:42
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
@karpathy
karpathy / pg-pong.py
Created May 30, 2016 22:50
Training a Neural Network ATARI Pong agent with Policy Gradients from raw pixels
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
import numpy as np
import cPickle as pickle
import gym
# hyperparameters
H = 200 # number of hidden layer neurons
batch_size = 10 # every how many episodes to do a param update?
learning_rate = 1e-4
gamma = 0.99 # discount factor for reward
@sedouard
sedouard / blank_vhd.py
Last active June 11, 2018 22:40
Create Blank VHD for Microsoft Azure
import datetime
import uuid
from azure.storage import BlobService
def generate_vhd_footer(size):
# Fixed VHD Footer Format Specification
# spec: https://technet.microsoft.com/en-us/virtualization/bb676673.aspx#E3B
# Field Size (bytes)
# Cookie 8
# Features 4
@myusuf3
myusuf3 / delete_git_submodule.md
Created November 3, 2014 17:36
How effectively delete a git submodule.

To remove a submodule you need to:

  • Delete the relevant section from the .gitmodules file.
  • Stage the .gitmodules changes git add .gitmodules
  • Delete the relevant section from .git/config.
  • Run git rm --cached path_to_submodule (no trailing slash).
  • Run rm -rf .git/modules/path_to_submodule (no trailing slash).
  • Commit git commit -m "Removed submodule "
  • Delete the now untracked submodule files rm -rf path_to_submodule
@dwyerk
dwyerk / concave_hulls.ipynb
Created April 12, 2014 23:20
concave hulls using shapely and scipy
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
@rameshvarun
rameshvarun / raytracer.py
Created June 6, 2013 06:26
A simple ray-tracer written in python with pygame. Writes all frames to an "out" directory. Put ffmpeg in the same directory as the script to save the images to a video.
import pygame
import sys
from math import *
import os
import threading
SCREENWIDTH = 800
SCREENHEIGHT = 600
ASPECT = float(SCREENWIDTH)/float(SCREENHEIGHT)
@chrisyip
chrisyip / vagrant-lamp.sh
Created May 8, 2013 11:58
Vagrant shell script for LAMP.
#!/usr/bin/env bash
apt-get update
echo mysql-server-5.5 mysql-server/root_password password PASSWORD | debconf-set-selections
echo mysql-server-5.5 mysql-server/root_password_again password PASSWORD | debconf-set-selections
apt-get install -y mysql-common mysql-server mysql-client
apt-get install -y apache2
@calo81
calo81 / LoggerFilter
Created March 18, 2012 12:48
Filter for reading and logging HttpServletRequest body, and resetting the input stream
package com.paddypower.financials.market.management.rest.logging;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
@daveray
daveray / seesaw-repl-tutorial.clj
Created December 7, 2011 04:55
Seesaw REPL Tutorial
; A REPL-based, annotated Seesaw tutorial
; Please visit https://github.com/daveray/seesaw for more info
;
; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers
; Seesaw's basic features and philosophy, but only scratches the surface
; of what's available. It only assumes knowledge of Clojure. No Swing or
; Java experience is needed.
;
; This material was first presented in a talk at @CraftsmanGuild in
; Ann Arbor, MI.
@jwo
jwo / registrations_controller.rb
Created September 30, 2011 23:11
API JSON authentication with Devise
class Api::RegistrationsController < Api::BaseController
respond_to :json
def create
user = User.new(params[:user])
if user.save
render :json=> user.as_json(:auth_token=>user.authentication_token, :email=>user.email), :status=>201
return
else