The Nineteenth Byte

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:07 AM

@xnor nice idea! I want to do this with js now

El'endia Starman

12:17 AM

@quartata Yes.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Map { 1111: "toSource", 0011: "fround", 1100: "log10", 0001: "imul", 0111: "hypot", 1011: "pow", 0000: "acosh" }

(all properties of math, mapped to truthy or falsey)

Oops, those are the longest

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ :D +1 for using map

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I switched to node

Map {
  '1111' => 'on',
  '0111' => 'or',
  '0011' => 'norm',
  '0001' => 'lcm',
  '1011' => 'pow',
  '0100' => 'log',
  '0010' => 'mod',
  '0110' => 'xor',
  '1001' => 'equal',
  '1101' => 'smallerEq' }

(using math and mathjs)

12 / 16

El'endia Starman

12:35 AM

@mınxomaτ Wait what really?

mınxomaτ

@El'endiaStarman Yeah, Spotify bought the algorithm that runs the API that the jukebox uses.

quartata

That's sad considering I hate Spotify

Don't want to have to use it just to loop my music nice and pretty

El'endia Starman

Yeah, I didn't have any strong feelings towards Spotify (since I don't use it), but this definitely makes me dislike them. The Infinite Jukebox is a really cool thing.

mınxomaτ

@quartata AFAIK that's not what Spotify bought. They acquired the API behind the app, which is proprietary.

The jukebox just (ab)uses the API.

quartata

They were made by the same people though

Or at least so I thought

Quill

12:39 AM

If they didn't buy the algo, then someone else can just spin up a new jukebox

mınxomaτ

Still, the acquisition is not about the looping. The jukebox just uses some features of the analytics suite behind echo nest

Cᴏɴᴏʀ O'Bʀɪᴇɴ

can you seriously buy an algorithm?

Quill

~~thanks, intermittent internet~~

El'endia Starman

@CᴏɴᴏʀO'Bʀɪᴇɴ Yes. LZW encoding is one example.

Actually, LZW encoding was patented.

But the root reason is the same: an algorithm is someone's intellectual property, just like a novel or song.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@El'endiaStarman so people can't reproduce the LZW algo?

Quill

12:41 AM

reproduce, yes. commercially use, not without paying costs

El'endia Starman

@CᴏɴᴏʀO'Bʀɪᴇɴ They can now since it was allowed to expire (and I don't think it was ever enforced), but yes, people couldn't use it commercially in the past.

quartata

Patents all expired a long time ago though in this particular case

mınxomaτ

What I mean is: They didn't buy the looping app, but the whole collection of algorithms and procedures that echo nest uses for many different things.

quartata

ninja'd

Upgoat

@Quill ( ͡° ͜ʖ ͡°)

quartata

12:42 AM

@mınxomaτ No, I know. But I would be highly surprised if they weren't using the API for the looping

Quill

@Upgoat nice

Upgoat

ty

Quill

I started using the "You got Mail" sound effect for pings...

Upgoat

>_> things in my cheese just keep on breaking

mınxomaτ

@quartata That's probably against a whole bunch of contracts with record labels (altering music and serving the remix etc.).

El'endia Starman

12:43 AM

Reason I used LZW encoding as a specific example is that that's how .gifs encode image data. There was a variant encoding developed that would work with decoders but not use the algorithm to avoid infringing the patent.

quartata

@mınxomaτ Oh, right. lmao

mınxomaτ

Too much legal fuzz for a small feature

Dennis

@LeakyNun Thank you for reminding me I had to revisit that challenge. I somehow forgot about it.

Helka Homba

Legal fuzz is the best kind of fuzz

Lynn

I need to visit that challenge too

Upgoat

1:01 AM

@Quill ಠ_ಠ they used p, an undescriptive variable name in the tutorial

@Quill D:

Quill

@Upgoat it wasn't written by code reviewers

Upgoat

make a meta post on it :P

Quill

uh no

feel free to open an issue in the SEDE repo though

and then we can play "Guess how long until Upgoat's issue is closed"

Upgoat

;_; i dont like this game

@Quill do you know of a think that does a think where that thing is when I rename a file, or relocate it it will change all require/imports with that file name to

surely someone has made such a thing

El'endia Starman

The musicians in here will probably like this (@PhiNotPi, and who else...?):

Bach, Prelude in C major, WTC I, BWV 846 (dyad spiral)

►

Quill

1:11 AM

I doubt it, use a regex replace in your IDE instead

Upgoat

ಠ_ಠ how can a code reviewer be suggesting regex

Quill

because regex replace is beautiful, also I'm finding myself using regex more lately

Upgoat

@El'endiaStarman i make good music when my herd and i all eat tin cans at the same time

El'endia Starman

@Upgoat Good music as in Kotomi-playing-the-violin good? :P (That won't make sense unless you've watched CLANNAD.)

Upgoat

@Quill A) :D we are taking your soul from CR B) D: ಠ_ಠ regex is evil

Hello @HelkaHomba!

Quill

1:13 AM

;-;

> CLANNAD

Maltysen

@Quill why, you don't like it?

El'endia Starman

Oh, you've seen it?

Helka Homba

Hello Goatsy

Quill

@Upgoat regex is evil, but so is a lot of things, like goats that try to take over the world

Upgoat

> CLANNA
D

@Quill i wonder who you are reffering to

Quill

1:14 AM

@Maltysen I wasn't a fan. I liked that other one about the violin player whose name fails me

Upgoat

(i actually do not know what you are reffering to pls explain)

Quill

@Upgoat chatgoat?

Upgoat

I have a function: CheddarLexer.jumpWhite(). I should rename it to "Thug" so I can do Thug.jumpWhite() :P

Helka Homba

When was the last successful pop-con?

Upgoat

@Quill oh ok

@HelkaHomba No

Helka Homba

1:16 AM

No?

Upgoat

sorry, bad joke

El'endia Starman

@HelkaHomba Patch the Image, Jan 29 looks like.

Quill

@Upgoat woah watch out, you don't want to trip over that EDGE

Maltysen

@Upgoat found: codegolf.stackexchange.com/questions/70483/patch-the-image

shit ninja

Upgoat

@Quill why is edge capitalized ._.

Helka Homba

1:17 AM

@El'endiaStarman It's time for another one!

Upgoat

oh god do NOT lookup edge on urbandictionary

Maltysen

@Upgoat its not that bad...

which definition are you talking about?

@HelkaHomba by this, do you mean that you have written one?

Upgoat

eh, it's not that bad but still very inappropriate @Quill ಠ_ಠ for making very inapproriate joke. brb reporting to se :P

Quill

edge like Microsoft Edge, jeez @Upgoat get your head out of the gutter

Upgoat

still don't get it :|

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:21 AM

where can I bug the people who make node for a feature request?

Maltysen

@CᴏɴᴏʀO'Bʀɪᴇɴ github.com/nodejs/node/issues?

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ this is why you use babel

you can make your own features

Helka Homba

@Maltysen I will by the end of the day probably

Maltysen

cool!

Quill

wow that infinite jukebox made one of my favourite songs so much more repetitive

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:23 AM

@Upgoat still doesn't have splat in lambdas

@Quill just try "all together now" by the beatles

Maltysen

@El'endiaStarman speaking of music, I listened to that thing you posted yesterday, pretty cool

Upgoat

btw does anyone mind doing testing for Cheddar? There are so many bugs I need help finding all of the so I can ~~eat~~ squash them

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I might

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ f=(...a)=>a works

Quill

@Upgoat sure maybe

labs.echonest.com/Uploader/index.html?trid=TRUAGSQ15556C29306

Maltysen

1:24 AM

@Upgoat i guess

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Upgoat no, it doesn't.

Quill

you need the es2015 plugin for splat

Upgoat

:D just go to cheddar.vihan.org and install for your system, I'll set up installation instructions for windows in a sec

Quill

babel = es6, for es2015 you gotta get a plugin for babel

Maltysen

@Upgoat where do I run the linux command?

will it install where I run it?

Upgoat

1:25 AM

@Maltysen no, it'll install in your path.

run it wherever you'd like

Maltysen

k

Upgoat

though you might need sudo access

wait no nvm

it'll prompt you

Maltysen

will it add to my .bashrc?

Upgoat

no it'll add to /usr/local/bin and /usr/local/share

Maltysen

you know what lemme just download it and see

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:26 AM

could I still bug the node people with it?

Quill

they might close it, but go for it

Maltysen

@Upgoat where will the path thing be?

Upgoat

it'll install the binary into /usr/local/bin/cheddar and supporting files into /usr/local/share/cheddar/ that's the only places/things it'll install

it won't touch your PATH

Maltysen

k

@Upgoat its giving me some warnings

Upgoat

yeah, that might happen. Are those showing up during the part where it has the bar that's installing things?

Maltysen

1:31 AM

probably maybe?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

github.com/nodejs/node/issues/7314

Maltysen

@Upgoat how do i run it?

Upgoat

cheddar

Maltysen

cheddar: command not found

Liam

use the full path?

Upgoat

1:33 AM

wat. was it succesfull? What's the result of find /usr/local/bin -name "cheddar"?

Liam

/usr/local/bin/cheddar

Upgoat

try doing export PATH=$PATH:/usr/local/bin; exec bash

Maltysen

@Upgoat no output

your script said it was successful tho

Upgoat

no errors? Can you paste the install log here

Maltysen

Downloading...
npm WARN engine [email protected]: wanted: {"node":">=0.12.0"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN deprecated [email protected]: Jade has been renamed to pug, please install the latest version of pug instead of jade
npm WARN engine [email protected]: wanted: {"node":">=0.12"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN engine [email protected]: wanted: {"node":">=0.12"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN cannot run in wd [email protected] grunt build --minify (wd=/home/dooku/Downloads/cdrtmp-1466040548)

Upgoat

1:35 AM

you need to run it with sudo it does not have permissons to install the dependencies

Maltysen

@Upgoat no it asked me for sudo

i put in my password

i didn't post that here because i accidentally typed half my password in plaintext before the prompt showed up >_>

Upgoat

that will only sudo some stuff npm needs more privledges, and I haven't set up the script to run npm with sudo >_>

> npm WARN cannot run in wd

Maltysen

so i sudo the entire thing?

Upgoat

yeah

Maltysen

that gave an error

sh: 0: Can't open /dev/fd/63

(23) Failed writing body

Upgoat

1:38 AM

shit

okay uh, I'll update the install script

okay, try now. I've made a fix, if it doesn't work I'll make another fix (run without sudo)

LegionMammal978

3 easy steps to keeping a secret: 1. Forget the contents of the secret. 2. Forget that you were keeping the secret in the first place. 3. Realize that you've probably already done this several times by now.

Upgoat

@Maltysen okay, I've pushed a fix, try it now

oh shit nvm

forgot to merge into master

Upgoat

1:58 AM

@Maltysen okay, try now

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Upgoat gimme a synonym for "console"--I'm writing a small console library, like console.log

Alex A.

@flawr No but I love that picture :D

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ STDOUT? terminal?

Alex A.

@CᴏɴᴏʀO'Bʀɪᴇɴ github.com/tholman/console-dot-frog

Upgoat

For Cheddar I'm doing IO.printf for console.log

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:00 AM

@AlexA. o_O

@Upgoat like Lua?

Upgoat

Lua?

idk lua

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Lua (programming language)

Lua (/ˈluːə/ LOO-ə, from Portuguese: lua [ˈlu.(w)ɐ] meaning moon; explicitly not "LUA" because it is not an acronym) is a lightweight multi-paradigm programming language designed primarily for embedded systems and clients. Lua is cross-platform since it is written in ANSI C, and has a relatively simple C API. Lua was originally designed in 1993 as a language for extending software applications to meet the increasing demand for customization at the time. It provided the basic facilities of most procedural programming languages, but more complicated or domain-specific features were not included;...

Upgoat

oh shit that's similar

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Similarity isn't a bad thing

Upgoat

My Cheese has absolutely no affiliation with that thing

but when Lua does it, it looks ugly

@Maltysen are you still there? :3

Alex A.

2:04 AM

@TimmyD Perhaps relevant to your interests? scoop.sh

Upgoat

scoop.sh it

@CᴏɴᴏʀO'Bʀɪᴇɴ can you write a batch script to: run the following shell commands (but in batch):

git clone github.com/cheddar-lang/Cheddar.git
cd Cheddar
npm install
grunt build --minify

Cᴏɴᴏʀ O'Bʀɪᴇɴ

it works in batch.

maybe not the grunt, but it shuold work just fine

Upgoat

and then copy that dir to C:\Program Files (x86)\cheddar

Cᴏɴᴏʀ O'Bʀɪᴇɴ

copy "%cd%" "C:\Program Files (x86)\cheddar"

Upgoat

and then add C:\Program Files (x86)\cheddar\dist\cli\repl.js to the %PATH%

Maltysen

2:12 AM

@Upgoat i went away im back

do i still run with sudo?

Upgoat

no

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Upgoat Idk how to add to path :P

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ wait no, instead of the grunt command, run ./node_modules/.bin/grunt

Cᴏɴᴏʀ O'Bʀɪᴇɴ

just copy paste that instead of grunt

Maltysen

@CᴏɴᴏʀO'Bʀɪᴇɴ explorer > computer > settings > advanced settings > env variables > PATH

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:13 AM

with batch

Upgoat

@Maltysen are you mac or windows or linux?

Maltysen

@Upgoat i'm linux, im guessing conor is windows

Eᴀsᴛᴇʀʟʏ Iʀᴋ

he is

Upgoat

@Maltysen cool, did the installation script work yet?

Helka Homba

strawpoll.me/10496684

Jambalaya should be Gumbo, oops

Alex A.

2:17 AM

@HelkaHomba Lentil soup is where it's at

Helka Homba

@AlexA. mleh

Alex A.

@HelkaHomba Tomato is good too, especially gazpacho

Maltysen

@Upgoat why would i ever chmod -R 777 my entire downloads folder

3

@EᴀsᴛᴇʀʟʏIʀᴋ are you windows?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

no

Upgoat

@EᴀsᴛᴇʀʟʏIʀᴋ no thats only when you alias i just tested on my mac

Maltysen

2:20 AM

@Upgoat also, i thought it didn't store where i ran it

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Upgoat i just tested on my mac

rekt

Upgoat

It did???? That means ir peobably broke

@EᴀsᴛᴇʀʟʏIʀᴋ ?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

nvm

Sp3000

chmod 777 /etc/shadow (how to fix all your permissions woes)

Upgoat

@Doorknob what counts as ppcg discussion? Site rules? Doscussing challenge solutins?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:23 AM

@Upgoat does this look useful to you?

"use strict";
const terminal = require("./terminal.js");

terminal.log("Testing!");
terminal.group("inner");
terminal.log("Testing 2!");
terminal.log("hiii");
terminal.ungroup();
terminal.log("hiya");

/* =>
Testing!
begin inner
  Testing 2!
  hiii
end inner
hiya*/

Alex A.

@Upgoat The Cheddar discussion should probably go to the Cheddar room

Helka Homba

@AlexA. Mini-challenge: Given 1 output potato, given 0 output tomato.

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ idk i dont see the difference between that and printf

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I mean the grouping

Maltysen

@HelkaHomba @c"tomato potato"

Eᴀsᴛᴇʀʟʏ Iʀᴋ

2:25 AM

language

Maltysen

pyth

Cᴏɴᴏʀ O'Bʀɪᴇɴ

pyth

ninja'd

@HelkaHomba e=>e?"potato":"tomato"

Maltysen

@HelkaHomba @c2"tomatopotato

Helka Homba

Now do it without any o's

Or go do something that doesn't waste time ;)

Upgoat

n=>n?`potato`:`tomato`

Alex A.

2:30 AM

@HelkaHomba I guess I should leave The Nineteenth Byte then. :P

Sp3000

`` "upnqpubup":(3/)\ri=\ ``

(I can never remember which formatting works where)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@HelkaHomba .‘ΞΏ΢ΞFΚ’, 11 bytes

Helka Homba

More soup! strawpoll.me/10496684

Upgoat

ಠ_ಠ why am i the only vote for tomato

tomato soup is best soup

Helka Homba

It matches your avatar

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:38 AM

@Upgoat I updated node and splat works

Quill

Oh it's time. https://t.co/4KYr3rQtKy

Tweeted by Nick_Craver on June 15, 2016 at 6:23 PM

Helka Homba

Does anyone here still use a "rabbit ears" tv antenna?

I remember having to adjust them all the time as a kid.

Quill

ye old magick

Cᴏɴᴏʀ O'Bʀɪᴇɴ

¯\_(ツ)_/¯

Alex A.

→ 27 messages moved to Cheddar

3

Cᴏɴᴏʀ O'Bʀɪᴇɴ

2:47 AM

ಠ_ಠ you moved a message that wasn't part of cheddar

Alex A.

→ 4 messages moved to Cheddar

Cᴏɴᴏʀ O'Bʀɪᴇɴ

in Cheddar, 9 mins ago, by Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Upgoat I updated node and splat works

Alex A.

@CᴏɴᴏʀO'Bʀɪᴇɴ which

Cᴏɴᴏʀ O'Bʀɪᴇɴ

that was unrelated

Alex A.

@CᴏɴᴏʀO'Bʀɪᴇɴ oh

Eᴀsᴛᴇʀʟʏ Iʀᴋ

2:48 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ did you see this?

0

A: Even or odd number?

Fuzzy Octo Guacamole, 3 bytes 2^m 2 # Push 2 to the stack ^ # Push the input to the stack m # Modulus # (implicit output)

Alex A.

← 1 message moved from Cheddar

Quill

lol

Cᴏɴᴏʀ O'Bʀɪᴇɴ

danke :3

Eᴀsᴛᴇʀʟʏ Iʀᴋ

rofl

Cᴏɴᴏʀ O'Bʀɪᴇɴ

#perfectionist unfortunately for me

Eᴀsᴛᴇʀʟʏ Iʀᴋ

2:49 AM

ik the feeling...>_>

Helka Homba

@AlexA. As a frequent TNB user I was perfectly fine and not bothered by the Cheddar chat here :|

Alex A.

→ 17 messages moved to Cheddar

Helka Homba

Way more "on topic" than talking about soup..

Eᴀsᴛᴇʀʟʏ Iʀᴋ

^

chili

Upgoat

←ಠ_ಠ for moving Cheddar

→ 1 message moved to Cheddar

Alex A.

2:50 AM

@HelkaHomba Cheddar has its own room

Upgoat

shit failed :| ;-;

Cᴏɴᴏʀ O'Bʀɪᴇɴ

good gravy, trying to move messages makes more noise than the messages being there in the first place

Upgoat

^

@StackExchange wat is the point of "moved to/from messages"

Helka Homba

@CᴏɴᴏʀO'Bʀɪᴇɴ agreed, now things are more confusing

Alex A.

Matter of perspective. For Cheddar debugging stuff you should use the Cheddar room.

Helka Homba

2:52 AM

Oh well

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@HelkaHomba {"tomato"0}i{"potato"1}_X

In FOG.

Helka Homba

^ Upgoat | Downgoat v

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@HelkaHomba no

Upgoat

big question: Should the string class in Cheddar be String or string

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@HelkaHomba lol

github.com/RikerW/Fuzzy-Octo-Guacamole

feersum

2:54 AM

sTrInG

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Upgoat string

@feersum no

StRiNg

Upgoat

@EᴀsᴛᴇʀʟʏIʀᴋ why

:^) I'm using branches and fancy git workflow. I finally can git :D

question should it be: Bool or Boolean

what should be outputted when you attempt to print a class? Not a class isntance

Sp3000

I vote s_t_r_i_n_g. Underscores are good

Cᴏɴᴏʀ O'Bʀɪᴇɴ

g'night guys

Upgoat

night!

Cᴏɴᴏʀ O'Bʀɪᴇɴ

3:04 AM

@Upgoat the latter.

Upgoat

okay

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Upgoat class <className> { <innardS> }

Quill

@CᴏɴᴏʀO'Bʀɪᴇɴ night

Upgoat

@CᴏɴᴏʀO'Bʀɪᴇɴ no

Cᴏɴᴏʀ O'Bʀɪᴇɴ

ok

Upgoat

3:05 AM

halp, how maek cheddar quine

zʏᴀʙiɴ101

3:32 AM

Hello

Upgoat

hello

i'm now like 99% of the way to cheddar v0.2 :D

@zʏᴀʙiɴ101 do you wanna help beta test Cheddar? :3

zʏᴀʙiɴ101

@Upgoat I can make a C9 workspace, if so you wish. :D

I have more questions than you think.

@Upgoat Which fancy git workflow do you use? :3

Quill

3:47 AM

the unit testing I have setup for Adynata is pretty good @Upgoat if you're getting stuck

also I suggest you do the unit tests in a new project and use git submodules to keep the project dependency up to date

zʏᴀʙiɴ101

Ahh, so many pings on Upgoat's part.

@Upgoat The jade package has moved to pug.

Also Upgoat, could you come to the zyabinVI beta room?

Upgoat?

Upgoooooat!

miles

4:07 AM

gah that inverse exponential generating function challenge would be easier if the input was size 2n and we only had to output a size n sequence

or if we knew the error O(x^(n+1))

Leaky Nun

@Maltysen Whether this works is one thing (of course it does). Solving the equations is another.

@Dennis 37 bytes.. that's nice.

Dennis

35, ignoring that stupid bug.

Leaky Nun

True.

zʏᴀʙiɴ101

@Upgoat where are you? :/

Sp3000

@LeakyNun Re the inverse egf challenge: how did you generate the test cases?

Leaky Nun

4:20 AM

@Sp3000 Those are all known sequences.

Sp3000

But they're truncated

Leaky Nun

5 hours ago, by Leaky Nun

New challenge about taylor series again in 10 minutes :D

5 hours ago, by Leaky Nun

This time I don't even know if an algorithm exists

@Sp3000 What do you mean?

They are truncated to the same length.

The terms afterwards will not affect them.

Sp3000

How do you know that the inverse of the original and the inverse of the truncation start with the same terms?

Leaky Nun

Because they would multiply to give 1

It's almost like a field

Sp3000

Not when you truncate it though, right?

Leaky Nun

4:23 AM

Why would they not?

[a0 + a1x + a2x^2/2! + a3x^3/3! + ... + anx^n/n! + O(x^(n+1))] times [b0 + b1x + b2x^2/2! + b3x^3/3! + ... + bnx^n/n! + O(x^(n+1))] equals 1+O(x^(n+1))

Quill

woah

Foo Fighters, Best of You: labs.echonest.com/Uploader/index.html?trid=TRCSVYH13AFA9C884A

Sp3000

@LeakyNun Well I mean it's not quite 1 (i.e. the error term)

Leaky Nun

@Sp3000 You mean O(x^(n+1))?

The later terms will not affect the earlier terms

zʏᴀʙiɴ101

How to install Cheddar on a C9 workspace? >_>

Quill

the same way as normal. start up a node workspace, clone the repo, npm install

zʏᴀʙiɴ101

4:30 AM

Okay, seems I got it.

Installing Cheddar on the workspace...

npm install done.

Quill

now npm run build

zʏᴀʙiɴ101

Cheddar installed!

schas002:~/workspace/cheddar (master) $ node dist/cli/repl.js
cheddar> quit

Sp3000

@LeakyNun Hmm k... think I'm convinced now - any rules on builtins?

Leaky Nun

@Sp3000 No rules... yet

Do you have any in your mind

Sp3000

Not really - I'd almost say Mathematica's got this if the builtin names weren't so long :P

Leaky Nun

4:39 AM

Do you have any algorithm?

Sp3000

Other than letting builtins do all the work? No, not really

Leaky Nun

What is the algorithm of the builtin?

Sp3000

Turn into series -> invert -> turn back to coefficients

Leaky Nun

How does it turn to coefficients?

Sp3000

SeriesCoefficient

I'm sure there's an actual algorithm, just too tired to think of one at this point

Leaky Nun

4:42 AM

Is it just repeated differentiation?

Sp3000

Oh, of course there's an algorithm - you can just do polynomial division :/

Leaky Nun

never thought of that

not sure if it works

Sp3000

It would, but it's a tad different because you need to watch the factorials

Leaky Nun

I mean

polynomial division from the lowest power?

miles

If the error terms are known when multiplied with the truncated inverse sequence, you can also use discrete fourier transform

Upgoat

4:49 AM

@zʏᴀʙiɴ101 you should've just ran the installations droit the you would've had cheddar comamnd

zʏᴀʙiɴ101

@Upgoat Did you read my other pings?

Read from this message.

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