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@karpathy
karpathy / min-char-rnn.py
Last active July 21, 2025 20:05
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)

To enable parallel build for F# projects in Visual Studio 2013, add a string parameter named IsMultiThreadedBuildEnabled with value 1 into key HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0_Config\Projects\{f2a71f9b-5d33-465a-a702-920d77279786}

(replace 12.0_Config with 14.0_Config for VS 2015)

Note: At some point this setting may disappear, it seems Visual Studio may erase it. So, you should check whether it's there before run VS.

Git DMZ Flow

I've been asked a few times over the last few months to put together a full write-up of the Git workflow we use at RichRelevance (and at Precog before), since I have referenced it in passing quite a few times in tweets and in person. The workflow is appreciably different from GitFlow and its derivatives, and thus it brings with it a different set of tradeoffs and optimizations. To that end, it would probably be helpful to go over exactly what workflow benefits I find to be beneficial or even necessary.

  • Two developers working on independent features must never be blocked by each other
    • No code freeze! Ever! For any reason!
  • A developer must be able to base derivative work on another developer's work, without waiting for any third party
  • Two developers working on inter-dependent features (or even the same feature) must be able to do so without interference from (or interfering with) any other parties
  • Developers must be able to work on multiple features simultaneously, or at lea
@domenic
domenic / v8-versions.md
Last active December 11, 2020 01:45
V8 versions for embedders

Embedders of V8 should generally use the head of the branch corresponding to the minor version of V8 that ships in Chrome.

Finding the minor version of V8 corresponding to the latest stable Chrome

To find out what version this is,

  1. Go to https://omahaproxy.appspot.com/
  2. Find the latest stable Chrome version in the table
  3. Enter it into the "Translate a Chrome verison to a V8 version" box below the table.
  4. Ignore the last two parts.
@ctaggart
ctaggart / 3.0 to 3.1.fsi
Created December 27, 2014 02:13
FSharp.Core Surface Area Diff (what is new)
[<AutoOpen>]
module Microsoft.FSharp.Reflection.FSharpReflectionExtensions
/// Creates an instance of a record type.
val MakeRecord : recordType:Type * values:obj [] * ?allowAccessToPrivateRepresentation:bool -> obj
/// Reads all the fields from a record value.
val GetRecordFields : record:obj * ?allowAccessToPrivateRepresentation:bool -> obj []
/// Precompute a function for reading all the fields from a record. The fields are returned in the
@tobek
tobek / get-image-urls.js
Last active July 21, 2025 01:14
Save images from chrome inspector/dev tools network tab
/* open up chrome dev tools (Menu > More tools > Developer tools)
* go to network tab, refresh the page, wait for images to load (on some sites you may have to scroll down to the images for them to start loading)
* right click/ctrl click on any entry in the network log, select Copy > Copy All as HAR
* open up JS console and enter: var har = [paste]
* (pasting could take a while if there's a lot of requests)
* paste the following JS code into the console
* copy the output, paste into a text file
* open up a terminal in same directory as text file, then: wget -i [that file]
*/
@staltz
staltz / introrx.md
Last active July 21, 2025 11:29
The introduction to Reactive Programming you've been missing
@borisbat
borisbat / gist:8308442
Created January 7, 2014 22:54
Tangent space
mat3 cotangent_frame( vec3 N, vec3 p, vec2 uv )
{
// get edge vectors of the pixel triangle
vec3 dp1 = dFdx( p );
vec3 dp2 = dFdy( p );
vec2 duv1 = dFdx( uv );
vec2 duv2 = dFdy( uv );
// solve the linear system
vec3 dp2perp = cross( dp2, N );
@swlaschin
swlaschin / type-dependency-graph.fsx
Last active February 27, 2025 07:40
This script analyzes the dependencies between top level types in a .NET Assembly. It is then used to compare the dependency relationships in some F# projects with those in some C# projects.
(*
This script analyzes the dependencies between top level types in a .NET Assembly.
It is then used to compare the dependency relationships in some F# projects with those in some C# projects.
Note that no attempt has been made to optimize the code yet!
REQUIRES:
* Mono.Cecil for code analysis
From http://www.mono-project.com/Cecil#Download
@zziuni
zziuni / stuns
Created September 18, 2012 08:05
STUN server list
# source : http://code.google.com/p/natvpn/source/browse/trunk/stun_server_list
# A list of available STUN server.
stun.l.google.com:19302
stun1.l.google.com:19302
stun2.l.google.com:19302
stun3.l.google.com:19302
stun4.l.google.com:19302
stun01.sipphone.com
stun.ekiga.net