2,975 reputation
1116
bio website jelv.is
location Berkeley, CA
age 22
visits member for 4 years
seen Dec 16 at 21:04

I am a software engineer primarily interested in programming languages, functional programming, program synthesis, type theory, universal algebra and startups (not necessarily in that order!). In the near future, I want to combine as many of these as possible.

Right now I'm an engineer at Esper, an early stage startup in Palo Alto. We use OCaml on the backend, which is pretty neat.

I am always happy to chat: my email is tikhon@jelv.is.

I am especially interested in questions and projects involving Haskell or interesting PL issues.

GitHub: http://github.com/TikhonJelvis

Website: http://jelv.is


Feb
3
comment What is the advantage of currying?
While the motivation here is theoretical, I think simplicity is almost always a practical advantage as well. Not worrying about multi-argument functions makes my life easier when I program, just as it would if I was working with semantics.
Feb
2
comment What is the advantage of currying?
@Giorgio: Yeah.
Feb
2
awarded  Nice Answer
Feb
1
revised What is the advantage of currying?
added 12 characters in body
Feb
1
comment How do programming languages benefit from being based on English?
@DavidThornley: Some languages, like Haskell, give identifiers starting with upper and lower case letters different roles. Others, like Java, should do that because that's what happens in practice anyhow. (That said, Haskell fully supports Unicode and figures out what role a character plays by its Unicode class.)
Feb
1
answered What is the advantage of currying?
Jan
29
answered Does javascript support numerically indexed arrays with a more optimized algorithm than an associative array?
Jan
26
comment When should I make the first commit to source control?
I do something similar. Since I use GitHub, I also always have a basic README file, even it just contains the name of the project. I find having the file there from the get-go makes it much more likely that I'll update it in the future :).
Jan
26
comment How to code in a more functional style in Java?
Why was this initially downvoted? (I voted it back up to 0.) It seems to be a great answer pointing to some good resources. A comment explaining the downvote would have been nice.
Jan
17
comment Applying Denotational Semantics to design of Programs
When I was looking into FRP, I thought there were some very good examples of denotational semantics making my life simpler--I found behaviors and events far easier to understand and think about after seeing the denotational semantics for them. However, this is a very simple example, so I'm not sure how illustrative it would be.
Jan
16
answered Loop Invariants in Python
Jan
5
comment Determinism of functions using PRNG in Clojure and functional languages
I don't know much about Clojure, but at least in Haskell the random numbers package is designed so that you can give it any generator you want. You can use a global one that gets a seed from the system, but you can just as easily use one with a constant seed. So this is certainly possible--and, in fact, really easy--in Haskell, which is a language even more functional than Clojure.
Jan
1
awarded  Nice Answer
Jan
1
revised Type systems: nominal vs. structural, explicit vs. implicit
added 1038 characters in body
Jan
1
answered Type systems: nominal vs. structural, explicit vs. implicit
Dec
31
comment Why aren't user-defined operators more common?
How much "school" do you count? For example, I think ∈ for elem is a great idea and certainly an operator everybody should understand, but others seem to disagree.
Dec
30
comment Why aren't user-defined operators more common?
Have you looked at how Haskell does custom operators? They work exactly like normal functions, except they also have an associated precedence. (In fact, so can normal functions, so even there they don't really differ.) Basically, operators are infix by default and names are prefix, but that's the only difference.
Dec
21
awarded  Enlightened
Dec
21
awarded  Nice Answer
Dec
3
comment Is it bad to use Unicode characters in variable names?
Emacs supports a bunch of nice input methods that make typing Unicode symbols easy. (Including a TeX one which is what I use.) Emacs is hardly futuristic. (It is awesome, of course.)