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420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated March 22)
9/11 by HELP - Tue, 27 Jun 2017 02:54:28 EST ID:PQNCtl9i No.37086 Ignore Report Reply Quick Reply
File: 1498546468140.jpg -(42883B / 41.88KB, 475x288) Thumbnail displayed, click image for full size. 42883
some girl named EmilyisPro on Twitch.tv claimed that she can send radio signals to people and also said that she did it while in a plane! she's apparently a walking cell phone.
she's endangering our national security and I don't know who to contact!
fix my problem.

ISO by Hamilton Hurringgold - Sat, 17 Jun 2017 13:28:42 EST ID:D3O7TRoe No.37073 Ignore Report Reply Quick Reply
File: 1497720522706.png -(1157756B / 1.10MB, 1920x1200) Thumbnail displayed, click image for full size. 1157756
Menu driven installer tutorials, howto.

Wanting to build a CLI menu installer to run system commands similar to setting up a headless server. Would need to work in SSH.
Ebenezer Shittingfoot - Sat, 17 Jun 2017 19:04:40 EST ID:MSuE7kG8 No.37074 Ignore Report Quick Reply
The quick-and-dirty way would be to use bash and something like this:


while true; do
echo ''
echo 1 - Do thing 1
echo 2 - Do thing 2
echo 3 - Do thing 3
echo q - Quit
echo ''

read -p'>' -n1 option
Comment too long. Click here to view the full text.
David Checkleworth - Sat, 17 Jun 2017 20:45:40 EST ID:MSuE7kG8 No.37075 Ignore Report Quick Reply
1497746740284.png -(6509B / 6.36KB, 484x316) Thumbnail displayed, click image for full size.
You can also use whiptail if you're looking for something more fancy:


selection=$(whiptail \
--backtitle "This Is The Backtitle" \
--title "This Is The Title Title" \
--default-item Boobies \
--menu "Please select something" 20 75 8 Boobies "This is a description of boobies" Kittens "This is a description of kittens" Drugs "This is a description of drugs" 3>&1 1>&2 2>&3)
echo You selected $selection


triangular tiling by snurrepupp - Sat, 13 May 2017 05:12:13 EST ID:LBUM/d2l No.36900 Ignore Report Reply Quick Reply
File: 1494666733428.png -(17146B / 16.74KB, 375x286) Thumbnail displayed, click image for full size. 17146
I'm making a thing in C where I want to restrict screen positions to junctions on a triangular grid.

Got any ideas on a kind of data structure I could make?
The grid itself should be able to be relocated around on-screen if wanted.
I need it to allow me to get position of the nearest triangle junction, based on some input position.
Additionally, it should allow me to get positions of adjacent triangle junctions.

Any suggestions?
4 posts and 1 images omitted. Click Reply to view.
Cedric Droshkere - Wed, 31 May 2017 02:13:39 EST ID:P6PS9CBz No.37011 Ignore Report Quick Reply
I agree, if two triangles share a vertex then they must be adjacent. This is true in any number of dimensions.
Edward Dozzlebury - Sun, 04 Jun 2017 17:05:46 EST ID:z/6RzCAH No.37041 Ignore Report Quick Reply
i guess it depends on your definition of adjacent, but what i meant was, if they share two vertices, they must be adjacent.
snurrepupp - Mon, 05 Jun 2017 18:42:29 EST ID:LBUM/d2l No.37058 Ignore Report Quick Reply

Yeah. Touched briefly on using vertices in my prev post.
I'm in the process of redoing my not-strictly-D20-related shit to better accommodate vertices. Gonna have a go once that's done.

I guess I'll be back when I run into more trouble I can't work out.
Or alternatively, when I can provide a download link to the finished thingy.

database by Jenny Grimham - Mon, 22 May 2017 09:22:58 EST ID:zPn+Vj4S No.36964 Ignore Report Reply Quick Reply
File: 1495459378981.png -(596449B / 582.47KB, 1024x552) Thumbnail displayed, click image for full size. 596449
hi to everyone,
do you know a source where i can learn relational database theory easily?
thanks in advance
1 posts omitted. Click Reply to view.
Doris Blatherstock - Sun, 04 Jun 2017 02:22:53 EST ID:HC1vVHLz No.37030 Ignore Report Quick Reply
Yes, CMU

The beginner courses are only slides/pdfs, but the "advanced" (it's not that advanced) course has full lectures on youtube.
Priscilla Babbercocke - Sun, 04 Jun 2017 08:09:41 EST ID:p6i2oGw1 No.37036 Ignore Report Quick Reply
The manga guide to databases is half decent, but my favorite book is Toon Koppelaar and Lex de Haan's Applied mathematics for database professionals. A pdf version is easily found online.

I also recommend you read Codd's paper A relational model of data for large shared data banks. Read it, look up the words, reread it until you get it. Then read it a few more times.

It's useful to understand hierarchical, network, relational and ER data models, to be able to distinguish them and translate data models between them. The meaning of terms like entity, relationship and relation depend on the particular data model you're using. Every online blog and tutorial will teach you a mismash of concepts mostly based on the old network data model but call it ER modeling. If you want to understand the real entity-relationship model, read Chen's paper The entity-relationship model - toward a unified view of data.

CJ Date's An introduction to databases is like the reference bible, but I'm not sure it's the best starting point.

Don't bother with Wikipedia, it's overcomplicated and not very accurate. Ignore blogs, online tutorials (hurr tutorialspoint), product documentation, etc. Ignore anything that mentions OOP / classes.
Priscilla Babbercocke - Sun, 04 Jun 2017 08:10:53 EST ID:p6i2oGw1 No.37037 Ignore Report Quick Reply
Formatting fail, I suck. nb

Programming Stories by Cedric Trotdale - Mon, 29 May 2017 22:15:16 EST ID:FNUGTkco No.37007 Ignore Report Reply Quick Reply
File: 1496110516216.jpg -(30817B / 30.09KB, 570x570) Thumbnail displayed, click image for full size. 30817
Given the turbulence /prog/'s been through recently I thought it would be fun to have a thread about experiences in programming. Tell us about your triumphs, defeats, crazy situations you've been in, times you've learned super-cool stuff, times you've had to learn super-uncool stuff, weird office politics, weird government politics, crazy people you've worked for, bat-shit insane APIs, Sales and HR, clueless management and all that good stuff.

Let's have a story thread.
Fanny Wemmlemat - Sun, 04 Jun 2017 02:27:29 EST ID:ofVPeViF No.37032 Ignore Report Quick Reply
I don't got any stories, but I immediately thought of these ones:

crack it by nig - Mon, 17 Apr 2017 20:09:51 EST ID:2vyiCPer No.36727 Ignore Report Reply Quick Reply
File: 1492474191394.jpg -(5659B / 5.53KB, 224x224) Thumbnail displayed, click image for full size. 5659
..-. ..- -.-. -.- .. -. --. / -. --- .-. -- .. . ... / --. . - / --- ..-. ..-. / -- -.-- / ... - .-. . .- --
10 posts omitted. Click Reply to view.
Hannah Bunfoot - Fri, 19 May 2017 13:03:27 EST ID:FNUGTkco No.36942 Ignore Report Quick Reply
Which post was that?
Celt !BzcOsK03.w - Thu, 25 May 2017 21:07:13 EST ID:Dd9yZva2 No.36990 Report Quick Reply
1495760833029.jpg -(461912B / 451.09KB, 696x1100) Thumbnail displayed, click image for full size.
Hi there, I'm a mod. I've responded in post >>>/420/237164. Please reply on the /420/ board to it and help clarify what you guys want done, and once I'm clear about it, I'll do what you guys request if there's a clear consensus.
Celt !BzcOsK03.w - Thu, 25 May 2017 23:56:13 EST ID:Dd9yZva2 No.36993 Report Quick Reply
As per >>>/420/237171, BrU has been dealt with for now: His threads are locked, his IPs are banned for a week, random unrelated posts by him in threads were people are trying to talk have been deleted and he's being told he's on his last strike.

If he comes back and simply does the exact same act, he'll be permabanned, no questions asked.

JS Canvas Laser Light+Webcam+New Thread!!!!! by BrU - Sun, 27 Nov 2016 11:10:15 EST ID:OEFE9/xF No.36319 Locked Ignore Report Reply Quick Reply
File: 1480263015033.png -(35596B / 34.76KB, 1000x1000) Thumbnail displayed, click image for full size. 35596
<body onload="setInterval(doit,101);" bgcolor="black">

<canvas id="myCanvas" width="1000" height="1000" style="border:1px solid #black;">
Your browser does not support the HTML5 canvas tag.</canvas>

function doit(){
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");

var gradient = ctx.createLinearGradient(Math.random()*5000,Math.random()*4000, Math.random()*235, Math.random()*235);
gradient.addColorStop("10", "black");
gradient.addColorStop("0.5", "red");
gradient.addColorStop("1.0", "black");
Comment too long. Click here to view the full text.
Thread has been locked
Thread was locked by: Celt
Reason: Keep it to one thread and one thread only BrU
112 posts and 4 images omitted. Click Reply to view.
JS Check If Image Is Covered If So Then Display Random Image FLIR SRC - Thu, 11 May 2017 17:19:19 EST ID:rAGFRmkY No.36885 Ignore Report Quick Reply
<body bgcolor="black">
<video id="video" width="640" height="480" autoplay></video>
<button id="t" hidden><b>Test Now!!</button>
<canvas id="canvas" width="640" height="480"></canvas>
document.addEventListener("DOMContentLoaded", function() {
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
Comment too long. Click here to view the full text.
JS Dog Whistle - Sat, 20 May 2017 02:34:17 EST ID:rAGFRmkY No.36945 Ignore Report Quick Reply
<body bgcolor=black>
function RollSlot(){
var Bar=Math.floor(99999);
var Barr=Math.floor(99999);
var Barrr=Math.floor(99999);
document.body.innerHTML='<h1><center><font color=lightblue>'+(Bar+":"+Barr+":"+Barrr);
var PlayLen=Bar;
var Freq=Barr
var context = new AudioContext();
oscillator.type = 'sine';
oscillator.frequency.value = Freq;
Comment too long. Click here to view the full text.
JS Web Audio Rec Not Coded By Me !!vVWR8L52 - Thu, 25 May 2017 13:25:51 EST ID:rAGFRmkY No.36984 Ignore Report Quick Reply

<title>Audio Recorder</title>

<script src="https://webaudiodemos.appspot.com/AudioRecorder/js/audiodisplay.js"></script>
<script src="https://webaudiodemos.appspot.com/AudioRecorder/js/recorderjs/recorder.js"></script>
<script src="https://webaudiodemos.appspot.com/AudioRecorder/js/main.js"></script>
html { overflow: hidden; }
body {
font: 14pt Arial, sans-serif;
background: lightgrey;
display: flex;
flex-direction: column;
Comment too long. Click here to view the full text.

Learning :) by Priscilla Blackhood - Tue, 04 Apr 2017 21:14:57 EST ID:yjZMJkkc No.36683 Ignore Report Reply Quick Reply
File: 1491354897228.png -(65204B / 63.68KB, 176x218) Thumbnail displayed, click image for full size. 65204
Anyone know any good websites that teach you coding?
5 posts and 1 images omitted. Click Reply to view.
Esther Pallerbadge - Wed, 17 May 2017 05:49:05 EST ID:3yt7HO4G No.36932 Ignore Report Quick Reply
are all coders this salty? man this board is like a 50/50 split of autism and anger
Sophie Genkinstedge - Wed, 17 May 2017 09:23:56 EST ID:b2Dm/aZr No.36937 Ignore Report Quick Reply
It'a at least 75% Bru. Also, if someone told me that was spam I would think that's very plausible. Is that your link? Do you think codebabes is a neat thing that deserves to be seen?
Nathaniel Parringdock - Sun, 21 May 2017 06:19:01 EST ID:5TS5kFz5 No.36953 Ignore Report Quick Reply
Nah, you want books m8. Codecademy is trash btw

Random Bash Scripts by Jarvis Susslelock - Mon, 15 May 2017 17:26:19 EST ID:BSmRhOy1 No.36917 Ignore Report Reply Quick Reply
File: 1494883579283.jpg -(42222B / 41.23KB, 506x600) Thumbnail displayed, click image for full size. 42222
>You have some *.aac files and you want to convert these to *.mp3 files with the "ffmpeg" utility. Use the "-i" and "-acodec" options for ffmpeg and add ".mp3" to each found *.aac file's base part (the part without ".aac"). Hint: "man bash" and "Parameter Expansion".


check () {
dir="$(dirname "$1")"
cd "$dir"
if git remote | grep -e '^origin$' >/dev/null
echo "==> $(basename "$dir") <=="
git fetch -t -p origin
Comment too long. Click here to view the full text.
Jarvis Susslelock - Mon, 15 May 2017 17:27:10 EST ID:BSmRhOy1 No.36918 Ignore Report Quick Reply
>Create a bash script that check the number of command line arguments and prints "Errornvalid number of arguments." if the amount is not 2 it returns with code 2.

if [[ "$#" -ne 2 ]];
echo "Error: Invalid number of arguments."
echo "code 2"
Jarvis Susslelock - Mon, 15 May 2017 17:28:53 EST ID:BSmRhOy1 No.36919 Ignore Report Quick Reply
oh son of a bitch this was the wrong one the description of this script is

>Create a bash script that manages your own git repositories. You have your own git repositories in one directory (done with "git clone <address>") and the script should enter each of these subdirectories (let's call them "projects"). When a project is found with supported configuration, the project is updated with "git pull" and successful update can be checked from the non-existence of the "Already up-to-date." string.


check () {
dir="$(dirname "$1")"
cd "$dir"
if git remote | grep -e '^origin$' >/dev/null
echo "==> $(basename "$dir") <=="
git fetch -t -p origin
Comment too long. Click here to view the full text.
Jarvis Susslelock - Mon, 15 May 2017 17:43:32 EST ID:BSmRhOy1 No.36920 Ignore Report Quick Reply
Anyone wanna do this one?

>Create a bash script that uses "rsync" command for backups and restores. The first argument should be either "backup" or "restore" and the second one is an optional argument specifying "realrun". The purpose of the "realrun" option is to avoid applying changes that won't be correct changes (without the option). If "realrun" is not set, use "--dry-run" option in rsync. Note that rsync supports huge number of different options. The most important ones are "--archive", "--relative", "--verbose", "--progress", "--human-readable", "--delete" for backup. Delete will cause changed not yet backed up to be lost. One option is to use the "--include-form" option for including only specific directories.

Neural Networks by Esther Fanlock - Sun, 23 Apr 2017 09:32:52 EST ID:ItvfE3hu No.36752 Ignore Report Reply Quick Reply
File: 1492954372194.png -(199403B / 194.73KB, 396x283) Thumbnail displayed, click image for full size. 199403
Just what is up with neural network? How do they work? How are they useful for a hobbyist? Isn't it just for huge data crunching and pattern detection and shit of the like?

What incentive is there to learn how to program them, and what are the easiest languages? What are the hardest? Where does C come into this?

Really curious because NN for some reason and everyone and their gran is on the hype train.
3 posts and 1 images omitted. Click Reply to view.
Archie Pimbleway - Wed, 10 May 2017 01:58:01 EST ID:8AGoqQnQ No.36873 Ignore Report Quick Reply
Basically, neural networks are good for complex problems for which there is no straightforward solution. they are an attempt to model the way the human brain works, with neurons and axons and such. you give them an input, and then using what is essentially a series of matrix vector multiplications, the neural network arrives at an output, or a set of outputs. there are a number of ways to 'train' a neural network, the two i see a lot are evolution and back propagation.

i suggest you check out the youtube channel 'carykh' if you like learning from videos at all, and they're also quite fun. but he's not really an expert. you should check out this online textbook also: http://neuralnetworksanddeeplearning.com/chap1.html
Archie Pimbleway - Wed, 10 May 2017 18:59:59 EST ID:8AGoqQnQ No.36877 Ignore Report Quick Reply
im guessing ios. to my knowledge there is no programming language named ios.
Cyril Druvingkere - Sun, 14 May 2017 08:53:09 EST ID:ZVivcFXs No.36910 Ignore Report Quick Reply
There is a guy on youtube doing a series on GTA V and making a self-driving car with a NN in python and a way of "reading" the screen in order to feed it into the neural network.

Too lazy to copypaste the link right now but just search "gta v python neural network self driving car" on YouTube and it should come up

Any programmer? by Clara Forringstock - Wed, 10 May 2017 02:42:36 EST ID:CO0b6fPY No.36874 Ignore Report Reply Quick Reply
File: 1494398556151.jpg -(330800B / 323.05KB, 1280x960) Thumbnail displayed, click image for full size. 330800
any programmer on asp and azure here?
Phineas Grandstone - Wed, 10 May 2017 02:59:23 EST ID:P6PS9CBz No.36875 Ignore Report Quick Reply
There's probably lots of people who know ASP and Azure here.

BASIC bitches by Frederick Havingwick - Mon, 15 Feb 2016 09:55:12 EST ID:v+xSbxsp No.35166 Ignore Report Reply Quick Reply
File: 1455548112204.jpg -(142590B / 139.25KB, 640x480) Thumbnail displayed, click image for full size. 142590
nah none of those

So I modded a cigar box to fit my kindle fire, then later added a small bluetooth keyboard and bam. instant laptop. It's the shit and I'm not ashamed of showing it off.

I got a BASIC programming app for it and it works great (a few minor bugs) and even came with some sweet code snippets and samples. However, I'm having trouble finding BASIC forums on the web. all I can find is VB shit and that's not going to help me.

specifically I'm having trouble with a do until loop with some if statments inside it.
for some reason the until doesnt register after the ifs. Can you use brackets\braces\parentheses? tried those a few ways and it wouldnt work

BASIC (not VB) forums and such, where are they?

pic related. eyeball cover front cam. signet cigar box. removed mostof body but keptj bottom / top and clasp. hidden compartment under keyboard.
4 posts and 1 images omitted. Click Reply to view.
Eliza Marringtat - Tue, 16 Feb 2016 14:00:35 EST ID:5q2tULje No.35179 Ignore Report Quick Reply
Also, although I haven't tried there's MSX basic, with a quite active scene around them. Seriously if you code basic you do it on a vintage machine or at least an emulator.
And you learn it by reading the Handbook, as they are very simple languages (Different variants of BASIC) which you can learn to grasp in their entirety which is quite something considering the complexity of modern languages.
Augustus Parrypen - Mon, 29 Feb 2016 10:11:18 EST ID:v+xSbxsp No.35252 Ignore Report Quick Reply
1456758678474.png -(273042B / 266.64KB, 400x600) Thumbnail displayed, click image for full size.
OP here. got the programming on the kindle thing figured out.
but now I have a new problem

turning on bluetooth isn't difficult, but takes like 8 swipes\taps and that's 6 too many for me. in the BASIC app, the code to turn on Bluetooth is "BT.OPEN", then, if your bluetooth isn't on, you are asked permission to turn it on. Simple! only 2 taps. HOWEVER, I can't for the life of me find a way to open a text file directly from the homescreen. (Though if you open it through the file explorer it will actually open it from the BASIC app by default, sweet!) I'm looking into getting android studio on my computer to just build my own simple apps like this, but it kind fo defeats the purpose of this project.

anybody know anything bout that?
Jarvis Gimmerman - Mon, 01 May 2017 20:37:39 EST ID:D5M/Ztac No.36828 Ignore Report Quick Reply

Baby's First Visual Basic Project by Samuel Snakesonthismuthafukinplane - Tue, 20 Sep 2016 06:49:27 EST ID:5WG+TwiW No.36167 Ignore Report Reply Quick Reply
File: 1474368567188.jpg -(11243B / 10.98KB, 212x300) Thumbnail displayed, click image for full size. 11243
I'm about to commit myself to a project that may span the rest of my life. I have decided to stop being a NEET and try to make the world a stranger place through programming. I already have my free Visual Studio... what do I make for a first project?
25 posts and 1 images omitted. Click Reply to view.
Graham Brirrystone - Sun, 30 Apr 2017 02:51:30 EST ID:rAGFRmkY No.36779 Ignore Report Quick Reply
Dim R=System.IO.File.ReadAllData("fuckwudoin.txt");
Graham Brirrystone - Sun, 30 Apr 2017 02:52:26 EST ID:rAGFRmkY No.36780 Ignore Report Quick Reply
WPF and Window Forms Work too classes are not required!!!- Gary From Menifee
Reuben Blurryfog - Mon, 01 May 2017 01:04:46 EST ID:rAGFRmkY No.36819 Ignore Report Quick Reply
JK that fool is a noob and a bi**ch this is EAF aka BrU

Excel automation by Isabella Broppershit - Sun, 30 Apr 2017 03:17:57 EST ID:sjT5DuRU No.36782 Ignore Report Reply Quick Reply
File: 1493536677095.png -(114258B / 111.58KB, 1444x906) Thumbnail displayed, click image for full size. 114258
Hi, I'm experimenting with automation in Excel/VBA, I'm trying to click on the "use another account" element but Spy++ and FindWindowEx can't locate it, but HP UFT can. UFT reads that it has the same HWND as the parent. Can any provide a solution to this?

tl;dr: how to use WinAPI to locate a static element that doesn't have a HWND?
5 posts omitted. Click Reply to view.
Graham Brirrystone - Sun, 30 Apr 2017 07:39:39 EST ID:rAGFRmkY No.36792 Ignore Report Quick Reply
The only case where HWND would be differnt would be if ur lookin at a MDI Form. Admin privs have nothing to do with it what version of win are u ha.. i mean testing . - Gary the snail.
Fanny Murdwell - Sun, 30 Apr 2017 08:20:46 EST ID:b2Dm/aZr No.36797 Ignore Report Quick Reply
Automating a GUI security prompt using VBA, huh? Do you have plans to make this a hat trick?
Graham Brirrystone - Sun, 30 Apr 2017 14:57:32 EST ID:rAGFRmkY No.36811 Ignore Report Quick Reply
U sure u didn't mean VB6 i mean why VBA? So Limited!!! .NET Even??

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