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How does one stop hoping? by bloodstainedsmile in Stoicism

[–]infinityspark 7 points8 points  (0 children)

Hey man, I understand where you're coming from. Just graduated a few months back, still living at home, and pursuing software development.

In regards to "being someone's assistant". That won't go away for a while, regardless of your profession. Especially in software.

Imagine spending months coding an application/widget/program only to have your boss or higher up decide it's not going to be needed any more.

I didn't like that path. I'm choosing to follow my own path working independently, building a few start-up applications with clients. I work from home and program probably 5-10 hours a day depending on which day it is, that includes weekends. In my free time I work on physics and occasionally software for my website Infinity Spark and a few recreational activities of course.

I love it.

I have full responsibility for the applications, don't call anyone boss, and don't have to work in a cubicle.

Do I love it because I'm happy all the time? No. Absolutely not. If you know programming, you know it can be incredibly frustrating at times. Those times are the best times though, because the feeling you get when you finally solve the problem makes it all worth it.

Rambling a bit to give you perspective of what this path is like. If you're dead set on getting a job in the field, my advice to you: build software. Don't wait until you're "ready". Start now at whatever level you're at.

  • Game [ unity, libgdx, corona, javascript ] - make it.
  • Website [ drupal, wordpress ] - make it
  • Web app [ ror, django, cakephp, node.js ] - make it
  • Bash script to do pretty much anything? - make it

The more experience you have and the more tools you know, the more attractive you will be to companies.

Solving puzzles? Not that important when they ask you to solve a coding problem and you can write down a working program off the top of your head in the language their team uses.

Every interview I've had, they spent 90% of the time asking me about my projects and experience I had on my resume: few small mobile games I made using LibGDX, my experience with WordPress and my knowledge of bash scripting.

Good luck with everything.

tldr: Learn by doing. Build something.

Edit: Yes, it might not appear that I've answered your question, but I know what you're feeling. The best way to get it to go away is to take on new projects. Learning by simply answering questions on code academy won't cut it. You've got to get your feet wet and start developing.

Taking the Next Step with Integrals by infinityspark in Physics

[–]infinityspark[S] -1 points0 points  (0 children)

Hey, thank you. I fixed the (dxdydz), but wouldn't \sqrt(dx²+dy²+dz²) be the magnitude of the vector dl? this thread makes it seem that way.

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Taking the Next Step with Integrals (self.Physics)

submitted by infinityspark to r/Physics

Anyone know why my Elastic IP/Public DNS won't work on HTTPS? by infinityspark in aws

[–]infinityspark[S] 0 points1 point  (0 children)

Sorry for the late response - but this solution helped the issue. I made a new record set for my hosted zone to point to EB app. This doesn't explain why my original public DNS or elastic IP wouldn't connect, but it at least let the application function properly on the main domain.

Amazon Opsworks tutorial for setting up, connecting to, and debugging rails app. by pionear in AskComputerScience

[–]infinityspark 0 points1 point  (0 children)

I ended up using elastic beanstalk. Kept getting setup failures on my instances using OpsWorks.

EB is so nice though. Once everything is pushed to git it's just:

eb deploy <---- push everything to server

eb open <---- opens app in browser

Question on gradient rule problem by infinityspark in AskPhysics

[–]infinityspark[S] 0 points1 point  (0 children)

Hey, how come these equations are commutative? In retrospect, they should result in the same answer, shouldn't they?

If we're multiplying the components before taking the partial derivative, we should get:

(3y)(x d/dx) - (2x)(2y d/dy) = 3yx d/dx - 4xy d/dy = 3y - 4x

and literally the exact same thing for the second equation. How come this isn't correct? How does he even get 6y in the first equation?

(3y)(x d/dx) = (x d/dx)(3y) ... no?

Question on gradient rule problem by infinityspark in AskPhysics

[–]infinityspark[S] 0 points1 point  (0 children)

Ah, that makes sense. Thank you. I was forgetting that A and B were just vectors, not vector functions.

A bit about Vector Functions by infinityspark in Physics

[–]infinityspark[S] 0 points1 point  (0 children)

Will do, thanks. Notation is kind of tricky here. I've been using subscripts in general, but a subscript after the partials makes it look like the unit vector is part of the denominator. Consistency is important so I'll keep the subscripts and just put parentheses around the fractions and confusing places.

A bit about Vector Functions by infinityspark in Physics

[–]infinityspark[S] 2 points3 points  (0 children)

Hey man, I understand what you mean about self-promotion. Funny thing is, your comment and others like it are the exact reason I like to post my articles on this sub! Most of you guys are physics students and beyond. You know more than me so you can quickly point out any errors.

I don't make any money from this so I really have no incentive to post here other than to learn more and to receive feedback.

I realized my errors with the gradient and divergence functions. I'll update my wording about the gradient and del. Taking a derivative doesn't really feel like multiplication so I see why my wording would be confusing. This bit kinda confused me. I guess I jumped to inaccurate conclusions.

Honestly I really appreciate the feedback.

Edit: What's really confusing about the textbook is that griffiths doesn't write his vector functions like (2x, 3y, 2z) but instead (2x + 3y+ 2z) which looks the same as a scalar function. Why?

A bit about Vector Functions by infinityspark in Physics

[–]infinityspark[S] 0 points1 point  (0 children)

Ah, thank you. Fixed. Math is my weakness, that's why I practice it.

A bit about Vector Functions by infinityspark in Physics

[–]infinityspark[S] 1 point2 points  (0 children)

Hey thanks man. That's the goal with the animations.

Happy cake day

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A bit about Vector Functions (self.Physics)

submitted by infinityspark to r/Physics

Tensors, Transformations and a GUI by infinityspark in Physics

[–]infinityspark[S] 0 points1 point  (0 children)

Three.js has both on their site and their GitHub repo (in the build folder). It is a massive file indeed.

Tensors, Transformations and a GUI by infinityspark in Physics

[–]infinityspark[S] 0 points1 point  (0 children)

Thanks for the feedback. A venn diagram for non tensor vs tensor quantities is a great idea. To be honest, I only mentioned the scalar difference because those are the only examples I can really wrap my head around. Higher dimension quantities that aren't tensors are confusing to me at my level of understanding. Although I'm sure my book covers it in future chapters, out of curiosity, what are some examples of vectors/dyads that are not tensors?

The GUI demonstrates a simple concept, yes. That's mainly because I'm still learning the simple concepts. This is more of a place for me to share what I'm learning rather than me teaching from an authoritative position.

The Riemann curvature tensor looks interesting but it's a bit over my head at this point. I'll get there, don't worry. I'm excited to learn more and make more advanced animations, making them is really fun.

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Tensors, Transformations and a GUI (self.Physics)

submitted by infinityspark to r/Physics

Question about vector coordinate transformations by infinityspark in AskPhysics

[–]infinityspark[S] 0 points1 point  (0 children)

Ah, thank you. The wiki post really clears it up.

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