arvid · HackerTrans

arvid

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投稿

Brain Gain The underground world of “neuroenhancing” drugs.

newyorker.com

19 ポイント投稿者 arvid17 年前1 コメント

Rogue ported to Common Lisp

a-nickels-worth.blogspot.com

9 ポイント投稿者 arvid18 年前0 コメント

Facebook asks labels about music service

ft.com

3 ポイント投稿者 arvid18 年前0 コメント

Moebius Transformations Revealed [Video 2:34]

uk.youtube.com

1 ポイント投稿者 arvid19 年前0 コメント

コメント

12 年前議論

https://github.com/davazp/jscl

12 年前議論

unfortunately PSOS does not use the current version of parenscript. It is based on an older and modified version.

12 年前議論

"Too many parentheses" is a cop out for "This language is too far out of my comfort zone." And I think that is why Lisp is not as successful as other languages.

I also think the almost mythical status of Lisp is also a hindrance. Lisp couldn't possibly live up all the hype. This leads to a backlash of common complaints ("not enough libraries", "smug lisp weenies", "bad culture", "no ide", "prefix notation is unreadable") when it does not live up to the hype or worse the user fails to grok lisp. The mythical status also leads to a higher percentage of trolls.

Back in the day, most programming was from scratch or at most trading bits of code. Lisp was great in this environment. Coding from scratch was quicker than other languages and due to its dynamic nature morphing someone else's lisp code was easy. Today most programming is patching together libraries or tools. Scripting languages are ideal for this. No one "steals" code any more, they "steal" whole libraries.

16 年前議論

1984

http://www.youtube.com/watch?v=OYecfV3ubP8

17 年前議論

Interesting interview with Allan Klumpp (one of the programmers)

http://www.netjeff.com/humor/item.cgi?file=ApolloComputer

17 年前議論

the url changed http://neopythonic.blogspot.com/2009/04/tail-recursion-elimi...

17 年前議論

this one is particularly true: http://www.math.rutgers.edu/~zeilberg/Opinion78.html

18 年前議論

because smart scientific people are skeptics. It is tougher to resolve one's skepticism with religious beliefs than it is resolve with atheism. Interestingly, I have known several atheist who were almost "religious" in their atheism.

18 年前議論

This is particularly true. Conformism is particularly strong in the black community. In college I had two good black friends. Both who grew up middle class and smart Both who were ostracized for having white friends. One liked heavy metal, computers and video games. One I roomed with for a year and he was harassed about it. We would receive threatening anonymous phone calls at all hours. If I answered, they would hang up. Eventually the campus police were able to trace the calls and we found out that it involved several people.

18 年前議論

I always disagreed article with this because I did not experience this. My high school years were not painful and were a lot of fun, even though I was labelled a nerd, curve-buster, einstein, etc.... So this is my advice from my experience. Don't try to be popular. Be friendly. Help others. Volunteer. Get Respect. Get involved in a sport. Get involved in various things with different people and you will have enough friends that being popular won't matter and no one will dare pick on you. I played soccer and later ran x-country and track, I sang, I was a scout, I was in youth fellowship, I was a mathlete and I hacked a pdp-8 in the hour between school and practice. I certainly was not popular but I was friends or at least friendly with most of the school. People knew me and I had their respect.

18 年前議論

Don't get your hopes up too much. Petrobras is a state run monopoly and has had a number of recent corruption scandals. Even though the price of oil has risen dramatically and Brazil continues to find more reserves, production has actually dropped the last few years. This is due to the fact that a platform sank a few years ago and 5 year's ago the government decided that all new platforms should be Brazilian-built. Of course they are also behind schedule with cost over-runs. These new fields are very deep and will require new technology and significant investments. Given the government's tendency to maintain political and economic control of natural resources, it is unlikely that much external investment or technology will participate in the exploration. The benefits from these new fields is many years away probably much later than 2012.

18 年前議論

A second for Hungerford. Lang's Algebra is a horrible book. It was the course book in grad school but we all studied from Hungerford. Hungerford is very detailed with lots of proofs and examples. Jacobson's Basic Algebra I & II is also very good but very sparse. I learned more from Jacobson but Hungerford is a great reference.

18 年前議論

I have lived in Brazil for 11 years and never heard of this company. You can check out their website: http://semco.locaweb.com.br/en/

18 年前議論

"Startups need to identify their moat and build their company around it."

Mixing up metaphors. I think you want to be inside the moat.

18 年前議論

Just a clarification. I was referring to PG "On Lisp" as advanced. Not PCL. "On Lisp" is mostly about complex uses of macros. Hence the name -- programming "On" lisp instead of programming in lisp

18 年前議論

"On Lisp" is excellent but is an advanced text; I would advise against it as a first book. PG's Ansi Common Lisp is pretty good and I use it as a quick reference before I go to The Common Lisp Reference.

18 年前議論

I would suggest The Little Schemer to understand the concepts of Lisp/Scheme. I would read and digest this before any other lisp book. The book appears to be an easy read but it is not. Practical Common Lisp lives up to its name and has some very good examples/projects intermixed with lessons. Be prepared to spend a lot of time manipulating, breaking down and refactoring code (for macros use macroexpand-1). This is exactly what you need to do when you get that lost feeling. The best thing about lisp/scheme is that the interpreter is always available to you to test and environments like slime or allegro IDE which allow interaction between the editor and interpreter. Also checkout lispcast (http://www.lispcast.com/)

18 年前議論

The post is a year old and still has "Julias Ceasar" misspelled. A Nike-ish post with culture. Live-strong.

18 年前議論

  Struggling Societies, Urban Essence, Blue Collar Blackbone,
  Varying Lifestyles, Aspiring Contemporaries, Remote America,
  Rural Villages and Farms, Metro Fringe, American Diversity,
  Upscale America, Small-town Contentment, Affluent Suburbia

OMG? New low in PC? It's like J.Crew colors to explain geographic groups. My curiosity got the best of me and I found this explanation: http://www.tactician.com/support/mosaic_documents.asp

18 年前議論

BS Math CMU, MA Math UPenn. Both too long ago to matter anymore. A programmer and failed mathematician. On good days, a software developer. Never a computer scientist or software engineer.