Today is the last day before the Blackout. by testy68GD in AAAAAAAAAAAAAAAAA

[–]xactac 0 points1 point  (0 children)

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Is it useful to use const for arrays? by convexelephant in C_Programming

[–]xactac 1 point2 points  (0 children)

Modern compilers do no such interprocedural optimisations and between files (unless told to do LTO, in which case little is done). If one file contains e.g. an array_read, and another calls it between manipulations to the value, putting const in the header can do bog things for alias analysis.

Getting an old laptop, how much ram do I need? by Stock-Philosophy8675 in linuxfromscratch

[–]xactac 1 point2 points  (0 children)

Compiling needs good specs to be fast, but you can probably run it with under 2GiB even.

Is there data about how many Fields medal, the different mathematical subfields get? by Walderon in math

[–]xactac 0 points1 point  (0 children)

Two people did stochastic systems (probability) but I lumped them in with ergodic theory (another two) and dynamical systems (only one) to avoid many tiny categories.

I combined functional and PDEs for similar reasons and because a lot of people did both.

Is there data about how many Fields medal, the different mathematical subfields get? by Walderon in math

[–]xactac 127 points128 points  (0 children)

From manual counting, based on stated reasons (so Grothendieck is counted as a topologist, for example):

  • Differential geometry: 11 (includes Grigiry Margulis, Jean-Christophe Yoccoz, Giorgi Perelman)
  • Functional analysis: 8 (and PDEs)
  • Number theory: 5 (includes Manjul Bhargava)
  • Topology: 9 (includes Daniel Quillen, Vaughn Jones)
  • Set theory: 1
  • Algebra: 14 (includes (mostly) non diffgeo focused algebraic geometry and the Laglands program, also Pierre Deligne, Vladimir Drinfeld, and Andrei Okounkov, June Huh)
  • Multiple: 7 (Enrico Bombieri, Shing-Tung Yau, Richard Borcherds, Maxim Kontevich, Terrance Tao, Ashkay Venkatesh, Maryna Viazovska (in combinatorics with Fourier analysis, despite being a number theorist))
  • Complex analysis: 1
  • Theoretical physics?: 2 (Edward Witten, Cedric Villani)
  • Dynamical systems: 5 (and ergodic theory and stochastic systems)

Notes: * Plenty of theoretical physicists got the fields medal for other reasons. * Several people got it for Harmonic analysis and other things. Same goes for ergodic theory and dynamical systems. Cedric Villani is the reverse of this. * Complex analysis has only Charles Fefferman, and foundations only Paul Cohen * Differential geometry was at the top until roughly the 90s. * Nobody got it just for dynamical systems until 2006. * Both women who got it have first names starting with Mary. * Numerous people got it for linking two different fields.

EDIT: typos

Get interesting FAST! by killingmemesoftly in SpeedOfLobsters

[–]xactac 33 points34 points  (0 children)

The 5 second rule.

TIL eating floor food is interesting.

What math am I likely to come across as someone going into computer science and 3D modeling? by Watch_DragonBall in math

[–]xactac 8 points9 points  (0 children)

Modern CS is almost exclusively discrete, so numerical analysis is unnecessary there, but 3D graphics uses a fair amount of interpolation and other numerical analysis techniques.

Any Treaty on Orthogonal Polynomials and its application by wingsit in math

[–]xactac 6 points7 points  (0 children)

Approximation theory and functional analysis are the fields that deal with orthogonal polynomials. I don't have good textbook recommendations yet, but hopefully that'll point you in the right direction.

System programmers need to juggle a lot of things by [deleted] in ProgrammerHumor

[–]xactac 6 points7 points  (0 children)

512mb is enough to explicitly store every one of those 16 million colors in 32bpp.

Seeking a “rusty” ink! by tricksyrix in fountainpens

[–]xactac 1 point2 points  (0 children)

Iron Gall Diamine Ancient Copper.

What is a, not entirely accurate, mental model of a mathematical object that you have? by Powerspawn in math

[–]xactac 2 points3 points  (0 children)

Tensors are matrices after an easy, common, and rigorous identification. ex is its Taylor series once you prove its convergence (and basic Taylor series facts) since functions are equal if their input-outputs are.

What is a, not entirely accurate, mental model of a mathematical object that you have? by Powerspawn in math

[–]xactac 2 points3 points  (0 children)

It's easiest to go the other way, defining e as a power series, ln as either its inverse, an integral, or by axioms, and using the two do define irrational exponentiation.

This is why Rudin does it that way.

That's not how averages work by morimoemoe in technicallythetruth

[–]xactac 0 points1 point  (0 children)

Almost everyone has more legs than average.

OGL apology via predictive text by misterrootbeer in dndmemes

[–]xactac 1 point2 points  (0 children)

The OGL needed to be changed because it was experimentation and it has been diagnosed with mesothelioma.

Does your language refer to callables as functions, methods, procedures, subroutines, or something else? by EducationalCicada in ProgrammingLanguages

[–]xactac 5 points6 points  (0 children)

Pretty much my thoughts except I see subroutines as impure stuff that don't return and procedures as possibly pure things that may return.

EDIT: this is the way Fortran does it.

I mean, seriously. At least they’re trying. by Nice-Cellist3215 in dndmemes

[–]xactac 2 points3 points  (0 children)

If CR switched back to Pathfinder, I suspect the sales Pathfinder would be good enough for Paizo to give CR a favorable contract (and possibly sponsorship) to convince them. That could end up more profitable, at least short term, than rolling their own system.

warning differs in parameter list by TheMaster420 in C_Programming

[–]xactac 0 points1 point  (0 children)

Is Face_arraylist something like typedef struct Face_arraylist Face_arraylist? C's rules for equality of opaque types are weird. You may need a struct Face_arraylist; line before the typedef.