daneelsan
daneelsan on Hacker News
In Mathematica/Wolfram Languege, the part 0 of an expression is reserved for the head of the expression: f[x, y, z][[0]] == f. Or g[f][x, y][[0, 1]] == f.
My goto right now is to listen to One Piece OST.
Posted by
daneelsan on Friday May 13, 2022 @07:36PM
from the writings.stephenwolfram.com dept.
There is a difference between online education because there is no other way as there is a pandemic (are the students and the institution ready to switch to online, are the courses even designed to be imparted online, etc.), and online education because it's a choice.
Would it be profitable, though?
I'm not sure why comments mention CA. His physics theory and the multicomputation stuff does not make use of CA's (at least no more than any other abstract machine).
Didn't he invent a numbering schema for classifying CA? That should count as an achievement.
> it's nothing more than noodling cellular automata in ways that have had no effect whatsoever on chemistry, physics, or biology.
I mean, you could at least read a bit about what his Multicomputation stuff is really studying. CA are not being noodled there.
Posted by
daneelsan on Thursday March 10, 2022 @12:53PM
from the wolframcloud.com dept.
Simple rules do not necessarily mean simple behavior.
Explore where observation leads in various different systems and rules.
I see what you mean, simpler indeed!
Tom is the current main developer of the new Wolfram Compiler. Search in YouTube "wolfram compiler" and you'll see almost all the talks are his.
Posted by
daneelsan on Sunday January 23, 2022 @03:16PM
from the dakkak.dev dept.
Yeah, I do want some kind of defer.
Some say they don't like it because it it's implicit control flow, i.e. I don't like that my code is being put into the end of the function without it being in the end of the function. I mean OK, but that's what for loops so right? The i++ is put at the end of the "while" loop, together with the exit condition.
I think the more important problems are: 1) why be function scoped and not block scoped? 2)why should it be so tied up with lambdas?
1) I don't se why they chose function over scoped so please enlighten me
2) the proposal said there were debates whether defer free(ptr) refers to the ptr where the defer first appears, or to the current ptr that appears when the defer block is being executed. As someone mentioned, gotos already work in the latter way. Same goes with i++ in a for loop, I could do whatever I wanted with the i inside the for, and the i++ or the exit condition would use the latest value of i, not the value at the start of the block.
Why ado you think namespaces make it a no brainer? I would argue the only thing I would want from C++ it's operator overloading, and I'm not even conviced about that.
Posted by
daneelsan on Friday September 24, 2021 @12:53AM
from the writings.stephenwolfram.com dept.
That sounds really interesting!
That seems like the thing I'm looking for! Thanks for the info
I guess that can be solved by creating an Expression type
Yes. At some point i encountered this trie with payloads (which would act as t he field values).
Sorry if I wasn't clear enough. Yes I want something like an object in javascript, like a struct in C but at runtime. But I want to implement this myself.
At first I thought a hash table was the right choice. But I don't need the insert delete increase capacity that this data structure typically needs to implement.
I want to implement this in Mathematica. The language doesn't have native objects given that the main idea is for things to be immutable. But I still can program data structures, so I'm looking for one...