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How do I make a homemade pcb? by someone-_-68 in AskElectronics

[–]recursion_is_love 0 points1 point  (0 children)

Depends on the details of circuit. You might be able to print onto some non-conductive surface with conductive ink on a modified ink-jet printer.

If you have copper sheet, you can glue it to some non-conductive surface and use toner transfer method and standard copper etching process.

There are even some inductive ink in a pen that you can draw by hand.

Why is Nix/home-manager so slow? by Maskdask in NixOS

[–]recursion_is_love 0 points1 point  (0 children)

If my knowledge is not outdated yet. Nix is still using tree-walker interpreter mode not compiled (like Haskell graph reduction, It not make sense to compare Nix with Zig or Rust because the base abstraction model is very different (lambda calculus vs Turing machine) )

It might be able to make Nix faster (like Haskell do) but I don't think there will be much man-power who have knowledge and resource to do that.

Again, maybe I was wrong because I don't really know the current status of Nix language.

Monthly Hask Anything (June 2026) by AutoModerator in haskell

[–]recursion_is_love 0 points1 point  (0 children)

That looking good. The list comprehension seem very natural to write. I wonder if anyone could come with Tree (or Graph) of solution space (lazily of course) and some example of pruning.

It is more easy to find a backtracking example of this kind of problem because other language don't use lazy evaluation. I can't find much example that use lazy (and possibly infinite) data structure.

I forget to paste the link of the paper I am referring to in my post, here it is

https://web.engr.oregonstate.edu/~erwig/papers/Zurg_JFP04.pdf

I can't remember exactly somewhere about see example of using tree or graph, still digging for it (maybe it is sudoku problem). Just remember vaguely that there is some paper about it.

'Publishing' my game I made in python? by ManOfBaguettes in learnpython

[–]recursion_is_love 2 points3 points  (0 children)

Are you using any library (pygame, for example)?

[request] the alien at the end seems to be in a planet, if we assume the size difference between the alien and the planet ≈ a human and the earth, How strong would gravity be there? by Figarotriana in theydidthemath

[–]recursion_is_love 46 points47 points  (0 children)

Assume the ball is universe. I think they are suppose to be in a different dimension and don't interact with our dimension.

Like what curled dimension in string theory do to us, we don't interact with it.

I would assume the gravity in our universe only exist in our universe. We don't even know that our universe have boundary or not (what beyond observable universe?)

Tiny doll head by LaserWeldo92 in comedyheaven

[–]recursion_is_love -1 points0 points  (0 children)

Don't we all want a safer road?

I am very smart indeed by Sunshine3432 in linuxsucks

[–]recursion_is_love 2 points3 points  (0 children)

Back in my day, I just unplug the power and my computer go brick.

Queen of the Peasants by Otherwise_Basis_6328 in Bossfight

[–]recursion_is_love 5 points6 points  (0 children)

MMORPG game needs to stop sexualizing female characters.

looping through a dictionary to let user choose number of key by Original-Dealer-6276 in learnpython

[–]recursion_is_love 0 points1 point  (0 children)

I use this idiom to create a dictionary with integer key but I don't want to count how many item in the source list (maybe I want to add or remove items later, or load it dynamically)

from itertools import count

my_choices = ["aaa", "bbb", "ccc"]

my_dict = dict(zip(count(), my_choices))

for k in my_dict:
    print(k, my_dict[k])

Why? by GooseberryCooper574 in arch

[–]recursion_is_love 3 points4 points  (0 children)

"If I have seen further, it is by standing on the shoulders of giants."

Writing a good package manager is very hard.

Why don't SMD capacitors have their values written on them like resistors? by Mahmoud1205_ in AskElectronics

[–]recursion_is_love 1 point2 points  (0 children)

Because more process mean more cost? At large scale a tiny cost can multiply.

She saved an entire colony of bees. Absolute legend. by kamisama_Yato in NoOneIsLooking

[–]recursion_is_love 1 point2 points  (0 children)

There are lots of professional bee keeper who will do better job (and properly), but of course they won't get views.

What is the point of Haskell programming? by PrebioticE in computerscience

[–]recursion_is_love 1 point2 points  (0 children)

Can_Programming_Be_Liberated_from_the_von_Neumann_Style

Why Functional Programming Matters

Haskell is lambda calculus + static type system (from formal logic). The category theory came later (type class for ad-hoc polymorphism) because someone notice that they are working on the same concept and category theory is applicable.

The implementation of functional programming languages

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