#Mathematical programming

[blake447]

Therapist: Klein bottle chess isn't real, klein bottle chess can't hurt you Klein bottle chess:

[wojenka]

i need more mutuals who are into coding and engineering!! more info under the cut!!

I planned to become an electrical engineer like my stepdad but then I decided to change my path to programming. I'm currently studying at technikum (<- wikipedia link so I don't have to explain the whole polish learning system), programmer major.

this year I have exams from web development (10th Jan - theory, 16th Jan - practical exams) and next year I have exams from App development (both mobile and desktop).

I know C family languages, Java, Python and those ones I am currently using. I also know a bit of Kotlin and I think I will continue learning it.

For web dev I know HTML and CSS ofc but also PHP and JS.

Planning on learning more languages I can use for App and operating system development as well as just to know them cause I want to after this year's exams!

my learning list:

Lua (I heard it's easy but I can't really get myself to read anything about this atm idk why)

Ruby

Assembly

Rust

As for electrical engineering I don't know much tbh but I would like to learn! I just used CAD programs for technical drawings (dad taught me some basic things when I was still thinking about going his path) helped my dad fix things on his Solar farm, houses of our neighbors and I made a few very simple circuits for fun a few years ago. Now I'm mostly focused on programming but since I learned most of the things I need for exams I have more time to do whatever I want now!

I'd like to get to know more people so I can share and mostly learn new things since even though I'm coding for years I consider myself a beginner and I am a total beginner when it comes to electrical engineering.

I'm willing to be friends or at least mutuals with anyone who codes or makes websites or is in STEM! no matter what your specialty/interest is exactly and no matter if you are a total beginner or a professional ^__^

I'd also like to have some mutuals who are into old web development and retro computing!!!!!!!!

edit: I forgot but I'm also interested in physics and quantum physics

[srisrisriddd]

Mathematical equation of Karma

- Dr Devang H Dattani

Good Morning

Quote / Poem / Poetry / Quotes Of 

Bhagwan Sri Sri Sri

Doctor Devang H Dattani

Infinite SriSriSri DDD

Posted By TheBlissCity DDD Team

See The Media Photo Video For

Quoteoftheday

God Morning

#karma , #truth , #intent , #thought , #action , #bliss , #TheBlissCity , #philosophy , #mindfulness , #DrDevangHDattani , #nature , #awareness , #InfiniteSriSriSriDDD , #quotes , #life , #art , #zen , #awakening , #quote , #spiritual , #photography , #Video , #meditation , #psychology , #poem , #poetry , #motivation , #inspiration , #quoteoftheday , #love , #words , #thoughts , #joy , #pun , #enlightenment , #health , #mental health , #consciousness , #good , #god , #landscape , #life , #nirvana , #tantra , #yoga , #experience , #photooftheday , #panorama , #lake , #mountains , #reflection , #mathematics , #equation , #aurora , #lights

[katzensilber]

Man, this is why I always hated math class.

Khan Academy gave me this easy (or so I thought) problem to solve:

"A factory makes toys that are sold for $10 a piece. The factory has 40 workers, and they each produce 25 toys a day. The factory is open 5 days a week. What is the total value of toys the factory produces in a day?"

I said to myself, okay...

10 times 40 times 25 equals 10,000. That means the factory produces $10,000 worth of value per WORKING day.

10,000 times 5 equals 50,000. And then there are two days per week (the weekend) when no value is produced. So, per week, the total value produced is still only $50,000.

And finally, there are seven days in a full week, so $50,000 divided by 7 equals roughly $7,142.86. That's the total value of toys produced per day. Not "per work day", but "per day", as it specifically says in the problem.

But what does the teacher say as he guides us through it? 10 times 40 times 25 equals 10,000, so the answer is 10,000.

That's it. The end.

He even acknowledges: "So, you might be thinking, 'Hey wait, we didn't use all the information! We didn't use the "five days per week" information!' And yeah, as it turns out, that was information we didn't need."

'As it turns out'?! Are you kidding me right now?! I carefully read the question, precisely calculated exactly what it was asking for, taking all of the provided information into account... and now you're saying I'm supposed to have somehow magically known to ignore one of those pieces of information in order to make it easier for myself?

Just admit that your problem is worded badly, dude. UGH this kind of shit drives me crazy. Why can't people use words clearly >:(

[bluetoad07]

i made a new (?) fractal today!

i call it the burning duck :3

v [explanation below!] v

i have no idea if anyone else has seen this before (someone probably has), but i think it's really cool!

this is somewhat of a halfway point between the mandelbrot set and the burning ship. the original burning ship fractal is the result of taking the mandelbrot set's equation ( z = z^2 + c; where z and c are complex numbers ), but using the absolute value of z instead ( z = |z|^2 + c ).

the result is this, a very pretty fractal that is quite well known:

while experimenting with my own fractal renderer i've been working on, i realized that i didn't have to absolutize the entirety of z. because it's a complex number, the real and imaginary portions are stored in separate variables, so i tried to see what happens if you only do one of them!

absolutizing the real half was very boring, it just mirrored the bottom half of the burning ship to the top. but the imaginary half created the duck!

visually, i think this is probably my favorite fractal! i am very surprised how unique it is to the burning ship despite being so closely related. here's a couple really pretty screenshots i took:

anyways thanks for reading this!!

[monado-stew]

[theskiesareopen]

Hi! I've been working on a new dependently typed programming language that's designed to be a Pareto improvement over everything that already exists and it's getting to the point where it's actually usable for practical purposes. I'm really excited about it and want to talk about it so please ask me questions about it!

I've designed a dependently typed language with subtyping and a useful fragment providing universal inference to improve practicality for general purpose scripting and programming. I've been using some original mathematical research to push closer to the impossibility proof boundary than any language has ever gone before, and getting some significant convenience and expressiveness out of it. I'm building a categorical notion of semantics to permit really easy compilation to any target, and hopefully extremely high performance with no UB.

I've developed a new approach to compile time reflection that exposes more of the language to metaprogramming effectively and usefully and safely than prior art, enabling extremely powerful abstractions that don't require syntax macro fuckery. Though just for good measure I developed a new way to approach syntax macros that's nicer too.

I'm integrating a modular effects and coeffects system that should allow better safety and convenience than the rust borrow checker while being a lot more flexible about what it represents and checks, for example one thing I'm excited about are security types, where you can, for example, specify that a piece of data is derived from a user's private data, and that contaminates everything causally linked from that data (except for specific security primitives like a one way hash or a homomorphic computation or whatever) (to the extent that the semantics can represent; making formal proofs of side channels is going to be a very long term project since there are no formal specifications of ISA semantics that capture them and all the hardware instructions to mitigate them are actually broken and don't work as advertised), so then a web response marked with another user's domain statically can't accept private information that doesn't belong to them.

[galaxymagitech]

Proof by "I coded it"

[blake447]

So in case anyone's following and seen my work with dragon and koch curves, and was curious about sierpinski's triangle, it can be represented with these sequences but unfortunately the process is more irregular so we cant pull the same tricks with binary sequences, at least in any manner that is immediately obvious.

Pictured above is a process where you double each element of the sequence, and pick a number to inject smaller triangles into, then repeat the process. With a bit of practice you can draw an eularian path that forms a sierpinski triangle.

If you wanna get really fancy you can vary the edge you break into smaller triangles each iteration, though its really, really hard to do on the fly

This is one i've always wanted to write a program to generate.

[why-the-heck-not]

what the fuck, I miss math courses?? why??? they’re always a misery, why do I crave misery ???

[desmos-calculator]

a week ago i was making a programming language for fun and i ended up using polish notation (= + 2 2 4) because it means i didn't have to implement operator precedence

Oh, I know about this!

I used to tell my friends to kill their matrices polish style to get the determinant, because I assumed you'd write it like × - × a d b c in polish notation. I was wrong, it's actually - × a d × b c. Was a very sad day for me

Anyways, yeah, sorry for the story, very cool you get to avoid pemdas by making the order matter, but won't it get confusing to have to do all the math backwards? (Since it relies heavily on doing the furthest right expressions first)

[itsgerges]

Best Regards Can Young Interference Be A Model For The Solar System Design? https://app.box.com/s/m5knmtma5f0vejev6x17f16idai9yurx or https://app.box.com/s/e9m3r3e9x2o3ncik9xznihwdh2581bsv or https://www.tumblr.com/itsgerges/781095009302740992/can-young-interference-be-a-model-for-the-solar?source=share or https://gerges2022.livejournal.com/254918.html

Paper argument Young Interference Is A Model For The Solar System Design

The Argument Explanation The argument is explained by answer the following 12 questions 1 Can The Space Be Created By Light Beam Energy? 2 How Can Young Interference Be A Model For The Solar System Design? 3 What Are The Useful Results We Get If (Young Interference Can Be A Model For The Solar System Design)? 4 What Proves We Have For The Idea Tells (Young Interference Can Be A Model For The Solar System Design)? 5 How Can The Coherence Of Light Be Occurred? 6 Can The Light Move Into The Past? 7 How Is Planet Formatted (Planet Formation Details)? 8 What problems are made by Young interference as a model for the solar system design? 9 Why Do We See The Bright Fringes As Planets? 10 Does Space Creation Need a speed 1.16 million km per second? 11 What's The Time Definition? 12 Can the solar system design be greater than (Young Interference)? Let's answer in following NOTICE I try to prove that (Young Interference Is A Model For The Solar System Design) in this proof I use many new facts I have discovered- but I don't explain any of these facts here- because all facts are explained and proved in the paper discussions. First Question Can The Space Be Created By Light Beam Energy? What Machine Can Use The Light Beam Energy To Create The Space? Young Interference uses two light beams for coherence of light- and this coherence produced the interference (bright fringes and dark fringes)- if we accept the space is similar to the dark fringes- that tells- the space can be produced by the coherence of light (If we put a small creature as ant inside a dark fringe this creature will see this dark fringe as space around it) Second Question How Can Young Interference Be A Model For The Solar System Design? Young Interference Is Consisted Of Bright Fringes And Dark Fringes And - if Young interference is a model for the solar system- that tells 1 We See The Bright Fringes As Planets (The Fringe Breadth Is Comparable With The Planet Diameter) 2 We See The Dark Fringes As These Planets Orbits (Space)- 3 The bright fringes order is typical to the solar planets distribution between the sun and Pluto 4 Planet velocity is defined based on its order because (V2=0.8 V1)- means- each planet velocity = (0.8) of its previous neighbor velocity (for example The Earth velocity 29.8 km/s x (0.8) = 24.1 km/s Mars velocity error 1%) – means- the order defines each planet velocity- that answers the question (why does planet orbit define its velocity?) NOW- let's compare between Young Interference and the solar system design 1 The planets distribution is typical to Young Interference-because- the greatest diameter planet "Jupiter" is found in the middle and the other planets diameters are decreased gradually on both sides typical to the fringes distribution in Young interference- 2 Please remember- I proved Mars original orbit was between Mercury and Venus and Mars had migrated to its current orbit by that the inner planets original order was (Mercury- Mars- Venus- The Earth) the diameters are decreased gradually from the Earth to Mercury typical to Young Interference (Also the outer planets diameters are decreased gradually from Jupiter to Pluto)- 3 If Young Interference can be used as a model for the solar system that means we see the bright fringes as planets (why? the answer is later) Third Question What Are The Useful Results We Get If (Young Interference Is A Model For The Solar System Design)? we get two useful results which are First result- this proves the conclusion tells (Light Can Move Into The Past)- which can enable us to create the time machine (explained later)(CONT) Gerges Francis Tawdrous +201022532292 Physics Department- Physics & Mathematics Faculty Peoples' Friendship university of Russia – Moscow

Curriculum Vitae https://www.academia.edu/s/b88b0ecb7c E-mail mrwaheid@gmail.com, mrwaheid1@yahoo.com gergesgerges@yandex.ru ORCID https://orcid.org/0000-0002-1041-7147 Facebook https://www.facebook.com/gergis.tawadrous VK https://vk.com/id696655587 Tumblr https://www.tumblr.com/blog/itsgerges Researcherid https://publons.com/researcher/3510834/gerges-tawadrous/ Google https://scholar.google.com/citations?user=2Y4ZdTUAAAAJ&hl=en Livejournal https://gerges2022.livejournal.com/profile Pocket https://getpocket.com/@646g8dZ0p3aX5Ad1bsTr4d9THjA5p6a5b2fX99zd54g221E4bs76eBdtf6aJw5d0?src=navbar

box https://app.box.com/s/47fwd0gshir636xt0i3wpso8lvvl8vnv Academia https://rudn.academia.edu/GergesTawadrous List of publications http://vixra.org/author/gerges_francis_tawdrous Slideshare https://www.slideshare.net/Gergesfrancis

[catscomputerscreativewriting]

theory of computation/computability and complexity/whatever your institution calls it is the universal computer science hazing ritual.

[acethetranspace]

The kind of friends I wanna have..

[imconfusedwithallofthis-blog]

Since I started studying SDF textures it kept blowing my mind, the idea to use texture data to keep something other then color data it genial

And it is so underutilized too, I mean, we use it for text sure, but add a little color information and overlay a few textures and we could have such a fast way to render vector graphics for games, every time I see a 2k texture for a vector image that probably has less than 1000 points I suffer a little inside.

And another thing is that it looks that the technology barely changed since it was published by Valve in 2007 and there is so much to question why do we calculate the distance to get a smooth curve why not try to solve mathematically for the shape of the curve, why not use a 3d texture and do some fluid animations? There is much potential with it

So I started a series of studies on where we can take the technology and hopefully will post some iterations here in the future!