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software engineers

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- Mon, 31 Aug 2015 21:30:52 EST L/We2WuN No.34527
File: 1441071052066.jpg -(51758B / 50.54KB, 960x774) Thumbnail displayed, click image for full size. software engineers
is anyone hear a software engineer or studying it? im starting collage and am think about studying it because of the high pay. an i have some questions.

>what skills do you need
>what was the biggest surprise about your work, something you did not expect.
>how are bonuses earned
>whats the shittest part about your job.
>what do you do day by day, like whats your day at work look like.
34 posts and 5 images omitted. Click View Thread to read.
Eugene Sickleridge - Mon, 28 Nov 2016 15:56:10 EST o7NpBz5X No.36336 Reply
So I'm kind of surprised to see someone trying to sell functional programming on here. Maybe you just haven't been around much yet, but "software people" do not want to use a functional programming language. Yes it would make them better programmers for learning it and would solve (or allow the automated solution of) many of their problems, but there is not an ice cube's chance in hell that anything other than Java, Microsoft's languages, C++, and other related atrocities will be used in the vast majority of applications. The reasons for this are social and political. Is it terrible that formal program verification is not being used on vehicles and in implants where program failure could cost human lives? Yes, but you would be better off not wasting your own life in trying to save all those lives lost to memory leaks.

There are limited real-world uses of functional languages in finance and in academia they are much more prevalent. Mathematicians and computer scientists do that stuff all the time. I do use Python for a lot of things myself, so I'm not a total fanatic when it comes to functional programming, but even Python would be an improvement over the state of things in commercial software development right now.
Samuel Dadgenine - Sun, 01 Jan 2017 16:56:09 EST e7bTcYy7 No.36437 Reply
Idk man, Scala hits a nice sweet spot for a functional language in a production environment because its compatible with existing java libraries. My employer switched to it a long years ago.
Matilda Hassleham - Sun, 01 Jan 2017 18:55:03 EST D7/rI9fU No.36438 Reply
Yeah but you still have to touch Java and are therefore living in sin.

where to start?

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- Tue, 15 Nov 2016 21:01:50 EST fItQgQqz No.36297
File: 1479261710490.jpg -(32631B / 31.87KB, 447x456) Thumbnail displayed, click image for full size. where to start?
i have no experience with programming besides basic ugly HTML and would really like to get deep into it (not for career purposes, just curious) and was wondering what are good resources that you used/wish you had when you started? i'm really really trying to grasp this stuff but i feel like it keeps slipping right though my fingers
11 posts and 1 images omitted. Click View Thread to read.
George Fiblingchut - Mon, 26 Dec 2016 03:50:03 EST mfkLzG/S No.36412 Reply
>a meme

There are 2 languages.

Fortran based and LISP based.

If you learn one of them you know them all, Clojure, Java, C, Haskell, guess which lang they are from?
Charlotte Hundlewell - Wed, 28 Dec 2016 11:43:57 EST FNUGTkco No.36418 Reply
1482943437588.jpg -(60780B / 59.36KB, 529x529) Thumbnail displayed, click image for full size.

Scotty, give me maximum pretentiousness.
Henry Pickspear - Thu, 29 Dec 2016 20:39:18 EST 29ygicdt No.36432 Reply

was expecting you to say "practice", made me lol

Makefile problem

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- Wed, 28 Dec 2016 13:47:24 EST 677AANqx No.36419
File: 1482950844378.png -(5817B / 5.68KB, 225x225) Thumbnail displayed, click image for full size. Makefile problem
I`ve been trying to make a project on unix, but yesterday I ran to a problem I just simply cannot solve.
I work on windows mostly and am Makefile noob.

I have everything installed up. But makefile yields: ".lib/arduino.a" no file or directory.
I figured out it must be some logical mistake in makefile; that it wants arduino.a before it is compiled.

Could anyone help me out?

Makefile: http://pastebin.com/QNGT1XNm
Readme: http://pastebin.com/ZtEA3SqW
Directory structure: http://pastebin.com/JLe8XNRB
7 posts omitted. Click View Thread to read.
Molly Casslelock - Wed, 28 Dec 2016 16:52:35 EST kEUrK4GZ No.36428 Reply
If you read through the makefile and did everything you were told to do, one likely possibility is that you're using the wrong version of something. The makefile is copyrighted 2013, so look into that.
Thomas Greenhood - Wed, 28 Dec 2016 19:10:25 EST 9QSfnS0r No.36430 Reply
If you are tired of writing your Makefile by hand try out platformio.
It creates project files based on imported libraries via a few command line commands.
Nathaniel Dradgework - Thu, 29 Dec 2016 14:21:32 EST sGFR0zid No.36431 Reply
1483039292221.jpg -(166021B / 162.13KB, 1332x1776) Thumbnail displayed, click image for full size.

>I changed it to "lib/arduino" and it got further. I still get error, but different one.



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- Thu, 22 Dec 2016 14:24:32 EST Jf4pElwU No.36392
File: 1482434672770.jpg -(6913B / 6.75KB, 182x251) Thumbnail displayed, click image for full size. c++
Anyone that can explain how to return the value after the change?

using namespace std;
class Pyre
float width;
float depth;
float height;

float change(float, float);

float Pyre::change(float side1, float side2)


int main()
Pyre pyr;
pyr.width = 50;
pyr.depth = 50;
pyr.height = 100;
Comment too long. Click here to view the full text.
9 posts omitted. Click View Thread to read.
Hannah Soblingwater - Fri, 23 Dec 2016 10:47:44 EST 9QSfnS0r No.36402 Reply
If you just use assignment instead of std::swap you'll override the left hand side but leave the right hand side as it is.
Be aware that using Pyramid Pyramid::change(float &side1, float &side2)
will just use the memory location of whatever you pass into that function, even it doesn't belong to the current instance of Pyramid.
This defeats the purpose of making it a method.

you could as well use
pyr.depth = pyr.height;
pyr.height = pyr.width;
pyr.width = pyr.depth;

for the same result.

>what can i use instead of swap then if i need to change the base (50,50) with the height (100) with just calling one method. the base still needs to be a square after the switch and only one called method is allowed.

That's even easier, but what should happen if the base isn't already a square?

You could do this, in case of the area staying constant

float Pyramid::constantAreaSide() {
return (float)pow(2,0.5)*Pyramid().baseArea();
void Pyramid::change() {
float oldHeight = height;
height = constantAreaSide();
width = oldHeight;
depth = oldHeight;
Comment too long. Click here to view the full text.
Hannah Soblingwater - Fri, 23 Dec 2016 10:54:35 EST 9QSfnS0r No.36403 Reply
it should be

float Pyramid::constantAreaSide() {
return (float)pow(Pyramid().baseArea(), 0.5);

Finding Code Behind Submit Button

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- Sun, 18 Dec 2016 17:06:59 EST W/zS63TD No.36384
File: 1482098819204.jpg -(5336B / 5.21KB, 268x121) Thumbnail displayed, click image for full size. Finding Code Behind Submit Button
This is all I have:
<tr><td align="center">
<input type="submit" value="Find me a scale!"><br>

I don't web dev, so where do I start to look? I'm assuming if it's JS then I can find it at least. Here's the page in question
3 posts and 2 images omitted. Click View Thread to read.
John Gedgechatch - Mon, 19 Dec 2016 11:04:38 EST bjMQSk50 No.36389 Reply
1482163478712.jpg -(208301B / 203.42KB, 1117x765) Thumbnail displayed, click image for full size.
Here you go, other posters were right. Doesn't appear to be JS, just a standard form and GET submit to the same PHP page/script.

In this case, you won't be able to get the code for the actual processing of the form, as the PHP is executed on the server before you see the results. It's not like JS where you can freely view the source in your dev tools.
Thankful OP - Tue, 20 Dec 2016 05:09:02 EST F+scHBch No.36390 Reply
Blast! It's PHP! And I would've gotten away with it too if it weren't for you meddling web-devs and your server-side scripts.
*shakes first*
*induces cringe*
*too far? probably*
/me kills self
Ebenezer Goodfield - Tue, 20 Dec 2016 07:13:51 EST eKgr8qwE No.36391 Reply
If you wanted to be a real scrub you could enumerate all possible inputs, write a script to try them all then scrape the results. The info is probably out there somewhere else anyway.

Just saw they have an 'API' [ http://www.scales-chords.com/api/ ] so maybe they are open to sharing the data with you? Email the guy who runs the site and ask.

ES6 is fucking retarded

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- Tue, 18 Oct 2016 01:48:29 EST IWfbDUK4 No.36246
File: 1476769709316.png -(72298B / 70.60KB, 893x933) Thumbnail displayed, click image for full size. ES6 is fucking retarded
Since I know you're all script-faggots, what's the best way to get a Javascript job? Have all the nerds already taken them? Should I kill myself now that I've devoted over a year of my life to this twisted language? Thanks /prog/, go fuck yourself.
11 posts and 1 images omitted. Click View Thread to read.
Ernest Crunkinforth - Fri, 16 Dec 2016 12:04:45 EST KPocSsNJ No.36376 Reply
Why no, I do not want to opt in to someone's advertising opportunity. Thanks for asking.
Beatrice Bunspear - Sun, 18 Dec 2016 11:46:00 EST +Ue5tBQC No.36382 Reply
It's free real estate tutorials. Just use a disposable mail.
Cedric Dashstodge - Mon, 19 Dec 2016 10:56:47 EST 6AJt8tju No.36388 Reply
Are they better than the thousands of other video tutorials and books on the topic I can get without giving an email?

I doubt it.

Moving an object along a line in java w/ slick2d

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- Sat, 17 Dec 2016 19:22:56 EST SWJfiJ9j No.36378
File: 1482020576040.jpg -(100637B / 98.28KB, 439x249) Thumbnail displayed, click image for full size. Moving an object along a line in java w/ slick2d
I'm trying to make a missile commander game.
When you shoot your missile, it spawns at it's starting x/y and needs to move in a straight line towards the co-ordinate where the mouse was clicked.
How would I go about generating a list of the x/y coordinates between these two points in a straight line?
Thanks in advance.
Hannah Dockletit - Sat, 17 Dec 2016 19:38:00 EST WLOo3E7i No.36379 Reply
given your starting point (x0, y0) and you mouse click point (xM, yM), you just take x percent of the starting point and (1 - x) percent of the ending point.

so a point 45% between your starting point and your mouse click would be (x, y) where:
x = (x0 * (1 - 0.45)) + (xM * 0.45);
y = (y0 * (1 - 0.45)) + (yM * 0.45);

depending how many points you need, just generate them in a loop.
Betsy Donkinkare - Sat, 17 Dec 2016 20:00:37 EST SWJfiJ9j No.36380 Reply
1482022837040.jpg -(52373B / 51.15KB, 640x475) Thumbnail displayed, click image for full size.
this worked really well! thank you!
have an ancap meme as a reward.

New to C++

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- Mon, 12 Dec 2016 00:11:42 EST bQwdXCse No.36361
File: 1481519502615.jpg -(37105B / 36.24KB, 433x455) Thumbnail displayed, click image for full size. New to C++
I recently bought a "C++ for dummies" book and although some of the aspects are confusing I am able to write pretty simplistic programs and arduino code.

Anyone else new to programming? Any suggestions on books?
9 posts and 3 images omitted. Click View Thread to read.
Killian - Sat, 17 Dec 2016 15:01:40 EST bQwdXCse No.36377 Reply
Sometimes what you + just isn't financially what I want... That's why our group has declined to accept any gifts from stargate +ing technology builders...

Your technology, your wholes in time space are too dangerious and if some of you had it your way you'd be pushing other peoples buttons all day wishing someone would find an innocence body their only to death it while 100% space +ing rapid growth mutants beg for the space of moment 1 + praying that moment one never sees all the innocence rapidgrowth mutants death.

So what ever.
Martin Sesslebury - Sat, 17 Dec 2016 20:35:57 EST V5hbNNkO No.36381 Reply
Get off the Internet, Terry Davis. You're drunk and crazy.

Are "soft" tech jobs useless?

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- Sun, 06 Nov 2016 12:02:44 EST RzCYRoD4 No.36282
File: 1478451764629.jpg -(85962B / 83.95KB, 958x1313) Thumbnail displayed, click image for full size. Are "soft" tech jobs useless?
tech companies, are positions like:
-> Project/program Managers
-> "User Experience" Designers
-> Scrum masters

Just fucking useless and meaningless compared to developers and engineers who do the real work?
8 posts omitted. Click View Thread to read.
Cedric Grandshaw - Tue, 13 Dec 2016 07:29:17 EST 2SsDO2ou No.36365 Reply
>My work uses waterfall
I would place money on this not being the truth, unless you work in defence.
The name 'Waterfall' was conceived by someone writing a book/paper saying 'hey, look at this (mostly) hypothetical shit way of working, no one does this, we do other things'.

Pure waterfall means that if you find a bug after you shipped, then that bug will never be fixed. LOL2BAD SUX2BU.
Agile is a set of rules that almost no one 'working Agile™' follows to the letter, but the basic gist is, plan a short piece of the larger work, do it, review how it went, then repeat the next bit until you're done or run out of time/money.

SCRUM is a proscribed set of meetings that help you 'be Agile™'.
Both are management techniques that don't really need non-developers involved but junior project managers are now called scrum masters to make them feel better about their worthless existence.
Cedric Grandshaw - Tue, 13 Dec 2016 07:32:18 EST 2SsDO2ou No.36366 Reply
So I completely missed the fact you say you work in the defence/murder sector.
Still not strictly pure waterfall I'll bet. I used to train rocket/radar/C2 guys how to write good software. Mostly intelligent and decent people, shame they use their brains thinking of better way to kill people...
Clara Tillingshaw - Wed, 14 Dec 2016 10:10:32 EST gA3E5l0l No.36367 Reply
Somehow we have all the resources in the world to kill people better but when it comes to keeping them alive it is impossible to get funding. Humanity is in the middle a protracted mass suicide.


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- Sun, 20 Nov 2016 09:57:41 EST sRAnM3Nm No.36308
File: 1479653861545.gif -(10060B / 9.82KB, 200x200) Thumbnail displayed, click image for full size. Advice?
I think I may have come to wrong board but I am looking for advice. I want to get into the sysadmin field I have experience with Hypervisors and setting up VMs and setting them up for automation. I am really confident in my skills in a enterprise and other mixed enviroment setting but I don't have any formal job experience and an my resume looks pretty dismal.

It seems like most employers want a degree in a crazy field to get a entry level position, I'll be going for an LPIC, Network+/CCNA/RS and CCNA DC cert in a few days. Any tips for a guy shooting for a sysadmin job or a data center tech?
1 posts omitted. Click View Thread to read.
Samuel Bittinghidging - Wed, 23 Nov 2016 15:19:14 EST 9QSfnS0r No.36312 Reply
Pretty much, and you don't need a degree for sysadmin tasks, and certs are only worth something if you ace them and get apply for a job over the institute where you're taking the test.
The public job offerings are from people who don't have anybody doing their IT inhouse who want to get away from a third party service contract. Avoid them.

Try to meet somebody who has the position you want and try to get them to ask around for you if they're hiring.
Fucking Dadgebury - Sat, 10 Dec 2016 00:18:48 EST rOfvwfN5 No.36358 Reply
Will do I was thinking of trying to hunt for bars where people with these kinds of positions might hang out and try to make some friends. Maybe I should join a tech based slack chat or something for my area.

How do you deploy your python flask/django/whatever apps?

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- Tue, 06 Dec 2016 11:57:07 EST gEtE4wNA No.36353
File: 1481043427275.png -(19604B / 19.14KB, 570x360) Thumbnail displayed, click image for full size. How do you deploy your python flask/django/whatever apps?
Right now, I spin up an EC2 instance, create a new user, install pip and virtualenvwrapper on it, make a virtualenv for my app, put environment variables in postactive, make an ssh key for the user, git push the code, pip install dependencies, create supervisord config file to run gunicorn in virtualenv (and celery or whatever if needed), configure nginx to forward gunicorn, then pray that I didn't forget a step.
I've been playing around with scripts and git hooks to automate some of the process, but I'm also looking around for existing deployment solutions.

Ideally I would just like to spin up a server from a template and be able to push the code up and get it up and running.

Heroku does this beautifully, but too expensive if you need more than a single hobby dyno.

How do you do it?
1 posts omitted. Click View Thread to read.
David Favingstone - Wed, 07 Dec 2016 10:55:38 EST gEtE4wNA No.36355 Reply
Definitely lots of options out there. I'm reading up on Salt right now, also Fabric.
I found this tutorial which is very similar to my deployment method, and the author links to a fab script to automate the process. https://github.com/realpython/flask-deploy

Looks like it gives you a lot of control over the process, since you're just writing a python script rather than filling out a config file. I've started using cookiecutter-flask for my latest project, so I might be able to include template supervisor/nginx/etc config files and a fab file in my project template.

I've been working from the mindset that I'm gonna need ssh access to the application user, so I was wondering how I would automatically generate a key-pair for it and copy the private key to my machine, since I won't have ssh access to it until I have the key.
But maybe I don't even need it, I'll always have a key for the admin user so I might just keep the git repo under admin's home and use the post-receive to set the work tree to app user's folder.

Jenny Honeycocke - Wed, 07 Dec 2016 18:02:26 EST uXHlOpBk No.36356 Reply
Configuration is one of those things where the short path to the best practice is finding the right thing to copy/paste from.
Edward Fubberlock - Fri, 09 Dec 2016 13:24:32 EST 9QSfnS0r No.36357 Reply
learn to use docker-compose, there probably is a ready made yaml file for flask,nginx,mysql, etc..
Has the advantage of being able to use the same tools in production and development, no need for virtualenv.
The only issue are unattended updates/updates in general but you can migrate that if you choose base images which are regulary updated and write your dockerfiles in a way that you can rebuild you images in production.

How to approach DSP

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- Sat, 26 Nov 2016 11:16:55 EST 9QSfnS0r No.36315
File: 1480177015438.jpg -(158197B / 154.49KB, 1024x684) Thumbnail displayed, click image for full size. How to approach DSP
Do any of you have any tips in regards of how to learn DSP programming.
By that I don't mean architecture dependent idiosyncrasies or optimizations but learning to apply the theoretical stuff.
Things like
  • Digital Filters, IIR & FIR
  • Oversampling & anti-aliasing
  • Impulse Frequency domain transforms, FFT & co
  • Wavelets
  • Real time scheduling

Most of the theory out there seems to be written for people who have a math or engineering degree, or at least are working on one.
I don't mind if an algorithm is expressed via a formula if it's necessary but I'd like to see something where the math behind it is explained by example as well.
7 posts and 1 images omitted. Click View Thread to read.
Nathaniel Hoshcheck - Wed, 30 Nov 2016 20:43:16 EST gA3E5l0l No.36347 Reply
You really do need a lot of advanced math to tackle most nontrivial differential equations. No one was trying to hide anything from you. It takes years to master the prerequisites and your teachers may not have even known enough about it themselves.
John Dartstock - Wed, 30 Nov 2016 22:04:55 EST US9Lx3Qr No.36348 Reply
1480561495496.png -(25309B / 24.72KB, 1000x460) Thumbnail displayed, click image for full size.
The counterfeit looking copies are international versions for markets where an $60-80 book cost is prohibitive. I paid $30 for one in school and was pretty happy considering I paid 80+ for about 4 books in a normal semester. It had cheaper paper and was not hard cover but that wasn't an issue for my use. Here's what I had

If you have an ebook version go with it. It's your decision whether or not a paper copy is worth the $20. The information is the same.

> 'Signals and Systems' seems to generally point to more interesting stuff than 'DSP'. ;)

It's a general book that is designed to give the reader an undergraduate level understanding of the subject in the title. It covers both continuous and discrete domains. It pays particular attention to linear time independent (LTI) systems because all kinds of neat things happen to make your life easier when you assume your system is LTI. All of the stuff in the OP is LTI. Not sure about wavelets but I think so. I haven't messed with them. If you understand that book you'll have a good foundation to build on in any application you want to get in to in signal processing. That's not to say you'll know everything you'll need to know but when you go to learn about a specific application you're going to need 90% of that book unless you're just copy and pasting stuff code or dropping in libraries.

>I do, although probably a bit rusty.

That's okay. You can review as you go but largely what you need is things like an integral is an area under a curve and a derivative is a rate of change. Your signals aren't usually going to be well defined mathematically but if you amplify a signal by 2 and then integrate it you should know the result is going to be twice the integral of the original.

I'm not sure who you're referring to as they but usually things like
>You won't understand that, it's only for college.
mean I don't know or I don't have time to spend a couple hours with you every day for a few months to cover the prerequisites. While solving a differential equation is a useful skill in analysis there are many forms and methods. I've seen multivolume collections dedicated to methods of solving differential equations. I don't think there's one guy who knows them all. What happens is you run in to one and you research how to solve it. You can pick up an undergrad diff eq book and get the most common ones. You'll probably want Calc 1 and 2 down pretty well before that. I recommend a combined linear algebra diffy eq book for engineers so you knock out both at the same time.

However the implementing DSP solutions often doesn't involve a lot of symbolic manipulation. A FIR filter performs a convolution(integral of one signal with a time reversed version of another signal where the signals are shifted relative to each other in time as a function of time) between the impulse response of a filter with the desired response(found by performing an inverse fourier transform of the desired frequency response). Sounds complicated right? Well all you do is draw the desired response and do a fft on it and then truncate it to the number of samples you want. Basically this means call fft in octave on a matrix representing the response. This is a tradeoff between fidelity to the drawn response and computational complexity. Now reverse these, because convolution reverses one signal, and you have your coefficients. Now you do pic related. Z-1 is a delay of one sample. Triangles are multiplication and sigmas are addition. There's an art to choosing the response and coefficients and googling fir filter design will give you some methods. The tradeoffs will be apparent once you understand that book and the google results will make more sense too. For example if you want a steeper slope you'll need more coefficients which means more math for your processor to do or more transistors in your asic. If you want phase linearity you will need to arrange for the coefficients to be symmetric which means more coefficients for a given design goal. You'll learn the art by playing with stuff and you'll know what you're playing with by knowing what's i…
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New to js

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- Sun, 02 Oct 2016 16:36:03 EST OijTI/50 No.36220
File: 1475440563324.png -(23416B / 22.87KB, 909x505) Thumbnail displayed, click image for full size. New to js
Hey /prog/

Can you help me out? I don't understand why this global variable won't change.
I want the user to change it through a pop up window, but when calling it in the main window, it says undefined.
3 posts omitted. Click View Thread to read.
BrU - Sun, 27 Nov 2016 15:08:43 EST OEFE9/xF No.36330 Reply
//Try declaring the variable like this.
var TEST=0;

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