'Statistical Inference of Constrained Stochastic Optimization via Sketched Sequential Quadratic Programming', by Sen Na, Michael Mahoney.

http://jmlr.org/papers/v26/24-0530.html

#optimization #iterative #iteration

Some lessons, you will find yourself learning again and again.

This is just how it is.
#learning #iteration #life

Wir laden ein – Iteration 4.0! Die Jahresausstellung unseres Bachelorstudiengangs geht in die nächste Runde und wir würden uns freuen, möglichst vielen Personen einen Einblick in unser Studium geben zu können.

Free entry for all!

Datum: 7.–8. Februar 2025
Ort: Schanzenstraße 22, Köln-Mülheim

Mehr Infos unter https://coco.study/iteration/

Warum ist iteratives Vorgehen nur so schwer?

https://no-bullshit-agile.de/nba42-warum-ist-iteratives-vorgehen-nur-so-schwer.html

Was ist eure Meinung?

#Development #Approaches
Make a mess, then clean it up · “The secret to building great software is writing terrible code.” https://ilo.im/1604vs

_____
#Programming #Project #Creativity #BlankCanvas #Iteration #Testing #AI #WebDev #Frontend #Backend

#programming #techDiscussion of #commonLisp on #itch_io .
https://lispy-gopher-show.itch.io/moonclimb/devlog/791188/what-we-get-out-of-lisp

: A short pamphlet about what I think you get out of lisp. Namely #loop #format #clim #clos #conditions ie #iteration #prettyPrinting #GUI #oop #notCrashing

When I remember how to get any of my tildes back I will gopher the org doc.

One day, one decomposition
A096887: Initial values for f(x)=phi(sigma(x)) such that iteration of f ends in cycle of length=2

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A096887.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A096887.html

One day, one decomposition
A096526: Initial values for f(x)=phi(sigma(x)) such that iteration of f ends in a cycle of length 4

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A096526.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A096526.html

One day, one decomposition
A095954: Initial values for f(x)=phi(sigma(x)) such that iteration of f ends in a cycle of length 6

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A095954.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A095954.html

I made another one.
This time using the following formula:

z[0] = x + y*i, where x and y are the image coordinates.
z[n+1] = a * (e ^ (e ^ z[n] - 1) - 1), where a ~ 0.8969209824084 + 0.4421908539483*i

The formula was iterated until sin(|z[n]|) - cos(|z[n]|) > 1.3 OR n reached 1000.

It reminds me above all of plants, jungle, nature etc.
#fractal #art #function #iteration #escapetime #swirl #mathart #mathematicalart #jungle

Here is a larger version produced using Fragmentarium (a free and open source shader editor).
It is actually downscaled from 10000x10000px to 2000x2000px using GIMP.

The formula used for this is:

z[0] = x + y*i, where x and y are the image coordinates

z[n+1] = i / ((a / z[n] - b/ z[n]) * e ^ (a / z[n] + b / z[n]))

where a and b are complex valued coefficients, controlling the behavior and structures of the result.

the color is generated by the HSL color space (converted to RGB) namely H = 0, S = 0, L = clamp(|z[250]|, 0, 1).

One day, one decomposition
A061641: Pure numbers in the Collatz (3x+1) iteration. Also called pure hailstone numbers

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A061641.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A061641.html

Reading Time: 2 minutes

People want us to see the Apple Vision Pro VR kit as revolutionary but it isn’t, for a simple reason. Several years ago I was going to the World VR conference and loved playing with various VR kits but they almost all had the same problem. They cost an arm and a leg to buy.

The HTC Vive was an alluring device because of how well it worked and how good it felt but it was made unreachable by its price. The same was true of the Oculus devices, except for the Oculus Quest 3. This had the best price of all. It came with a cost. The Facebook environment. If Facebook can mind duck us(intentional spelling) in two dimensions then imagine how much worse it will be in AR.

The Apple Vision Pro has the same problem as all the others. It will cost 3600 USD or more. This is too expensive. It’s yet another VR device that is pricing itself out of the market for normal people.

VR is a fantastic medium and I love using it, but it’s far too expensive. In some cases you need to spend 800 CHF on a phone, and then yet more on the headset adaptor to wear the phone within the VR headset.

For VR, AR and XR to be interesting they need to be made affordable. They need to cost 200-300 francs, like the Oculus Quest 3, but without being within the Facebook ecosystem. I would have bought the Oculus Quest 3 a few years ago, if it was independent, rather than owned by Facebook.

In a few months, when Apple Vision Pro start selling we will hear the evangelists sing praise for the device but they’re singing praise because they’re among the privilieged few, either to have access through their job, or with the financial situation to spend thousands of CHF on a headset.

And Finally

Some people hate VR and AR because they feel that it isolates people. Others hate AR and VR because it makes them feel sick. Yet more people think that wearing a headset will cut people off from their environment. I see the appeal in AR/VR and XR. What bothers me is that every company makes it unaffordable.

For VR content and games to become more popular AR/VR and XR need to be affordable. Apple, HTC Vive and Occulus aim for the unaffordable portion of the market. We need something affordable. Apple would be revolutionary if it made things affordable, rather than for the wealthy. VR has been around for decades, and it is still priced out of peoples’ reach.

https://www.main-vision.com/richard/blog/apple-vision-pro-stagnation/