g*****g
发帖数: 34805 | 1
Sure, but on a hot section that's run many times, it's negligible.
As I said, well-tuned Java will never outperform well-tuned C++ code,
but vanilla Java code can outperform vanilla C++ code in some cases due to
JIT optimazation, as seen in the paper.
And well-tuned C++ code is only 2-3X faster than
well-tuned Java in most comparisons, with twice or more efforts required.
These make C++'s TCO higher than Java in most applications. TCO determines
what language to choose in most cases. |
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r****y
发帖数: 26819 | 2 本版经典主题之一啊。
+, Java, Scala and its own programming language Go – and then benchmarked
results to find "factors of difference".
the paper says.
which were done at a level of sophistication that would not be available to
the average programmer". |
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N********n
发帖数: 8363 | 4
Whatever happened to that "HTML+JS being first class choice" statement?
Yesterday it's "first class", today it's "assembly". Yesterday we were
told JS code could be as quality as any language, today we are told not
to care if HTML+JS combo is as unreadable as assembly.
You'd have dizziness following all the contradictory statements from
the HTML+JS camp. I don't know about you guys but when someone tells me
he can move two steps forward then two steps back and still make big
progress then I kno... 阅读全帖 |
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L***n
发帖数: 6727 | 6 poor visual basic, rest in peace... It is surprising such a high percentage
of java programmers disliking the language, or maybe many of them are just
casual java users really? |
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p*********t
发帖数: 2690 | 7 where is BASIC? My first computer language. |
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t****a
发帖数: 1212 | 8 大家总在比较java / C++，换换口味比比functional programming language如何.. 毕
竟并行化计算是大势所趋...
本人现在主要使用clojure/emacs lisp/R，但对其他几种FP(scala, haskell, ocaml,
F#等)没有接触／经验，想请goodbug和其他大拿们帮助科普
多谢！ |
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k*****a
发帖数: 1463 | 9 Let's go back to your claim: "C# is far behind in terms of libraries."
Library please! Again, please do not trying again to introduce
"libraries and products"
try to cover your claim regarding
"libraries".
Simply, you just need to prove there exists "a lot libraries" (far behind)
in java whose functionality does not exist in .NET libraries. FYI, no one
have linked or
loaded "ebay", or "hadoop", or "gmail" in their process. I believe you did
not intended to treat these products as ... 阅读全帖 |
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k*****a
发帖数: 1463 | 10 LINQ to HPC maybe intended to do so, which I did not know it even existed (
my ignorance). However, arguing that .NET does not have a infrastructure
like such is just not true. HPC is a small team within server and tool.
HADOOP is a product, well you can argue it is a set of libraries. Then you
will have libraries like SharePoint libraries which does not have
counterpart. Or someone's own "hello word" library in his own project just
has no match in the world, is it even relevant? We are not disc... 阅读全帖 |
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c***d
发帖数: 996 | 11 for consumer web/mobile, I really only care about library support more than
anything else for backend language. That makes java my first choice, then
python comes to second. That is also why i wont use something like node for
another three years. |
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c***d
发帖数: 996 | 12 protect your dependencies by unit test, unit test is your documentation and
guard against api change.
for dynamic type language, unit test is integral part of the code base.
, |
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g*****g
发帖数: 34805 | 13 The nature flaw of dynamic languages can be compensated by automated tests.
While I don't prefer them in backend, I won't rule them out. There can be
good use cases.
, |
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t**r
发帖数: 3428 | 14 machine leaning, natural language processing 这些有码农在搞么？
是不是码农搞这些搞不过phd。所以大家都不搞了。 |
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H**r
发帖数: 10015 | 15 所以学术界会经久不衰
我感觉computer vision现在也很挫，潜力比natural language processing大多了 |
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p****w
发帖数: 90 | 18 nn【在 xykkkk (asdf)的大作中提到：】n：【 以下文字转载自 Joke 讨论区 】n：发
信人: xykkkk (asdf), 信区: Joken：标 题: Learning Curves (for different
programming languages)n：发信站: BBS 未名空间站 (Mon Dec 29 08:06:46 2014,
美东)n：n：https://github.com/Dobiasd/articles/blob/master/programming_
language_n：learning_curves.mdn……nn--n[发自未名空间Android客户端] |
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a*****e
发帖数: 1700 | 19 推荐 Bob Harper 的新书 Practical Foundations for Programming Languages，免费
版：
https://www.cs.cmu.edu/~rwh/plbook/book.pdf
Category theory 离 PL 还是远了一点，除非你搞 recursion scheme 什么的。大多数
category 其实仅对应 idealized 的语言里的概念，比如 Haskell 里通常假定的
Hask category 其实并不存在。 |
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a*****e
发帖数: 1700 | 20 推荐 Bob Harper 的新书 Practical Foundations for Programming Languages，免费
版：
https://www.cs.cmu.edu/~rwh/plbook/book.pdf
Category theory 离 PL 还是远了一点，除非你搞 recursion scheme 什么的。大多数
category 其实仅对应 idealized 的语言里的概念，比如 Haskell 里通常假定的
Hask category 其实并不存在。 |
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a*****e
发帖数: 1700 | 21 Theory of Computation? 和 formal language 不沾边吧 |
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t**r
发帖数: 3428 | 22 The end of dynamic languages |
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n****l
发帖数: 1739 | 25 "It's (c++) the closest language to C and the obvious step up from it"
I think most kernel developers (including windows) and low level linux/unix
guys will have to disagree. |
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k****i
发帖数: 101 | 27 lispy三大件，fp，dp和sexp。
逻辑与形式不可方物，
熟读sicp，宁静致远。
：因为FP language不需要design pattern就能做到同样效果
： |
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b*****p
发帖数: 190 | 28 I just got my new PC with Vista. But I got some problem. I hope someone
could help me out.
I can read read Chinese from IE. But why cannot I read any Chinese with the
system, e.g. when I installed ZiGuang PinYin. I cannot even read the
instructions for installation.
Did I miss something? I already add Chinese as one language format. Now I
cannot even type Chinese.
Can anyone help me out? I have worked on this for the whole night, now I am
really hopeless.
Thanks!!! |
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s*****r
发帖数: 31 | 29 I bought a laptop comes with Windows 7 Home Premium. Now I want to install
Language Interface Package so I can use Chinese menu. How do I install LIP
on Windows 7? Does it have to be Ultimate or Business version?
Thanks. |
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o*****e
发帖数: 23 | 30 【 以下文字转载自 Programming 讨论区,原文如下 】
发信人: oldbare (oldbare), 信区: Programming
标 题: how to find IP of current server of UNIX by C language(NULL)
发信站: The unknown SPACE (Tue Dec 5 00:32:44 2000) WWW-POST
thanks a lot. |
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w*y
发帖数: 47 | 31 【 以下文字转载自 Programming 讨论区,原文如下 】
发信人: wly (特别的爱给特别的你), 信区: Programming
标 题: the C programming Language by K&R
发信站: The unknown SPACE (Tue Sep 10 20:36:21 2002) WWW-POST
Where to download it?
Thanks a lot, |
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f********u
发帖数: 572 | 32 【 以下文字转载自 Linux 讨论区 】
【 原文由 flywithyou 所发表 】
I installed Chinese language when installing the redhat 7.2. but
now the terminal can't show chinese charaters. how to set it up?
my Mozilla shows Chinese characters anyway. Thank you ~ |
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t*u
发帖数: 186 | 33 touch ~/.i18n
put the following 2 lines into ~/.i18n
LANGUAGE=en_US.UTF-8
LC_CTYPE=zh_CN.GB18030
reboot your linux box.
your system should have an english environment, and ctrl+space should invoke
chinput. with terminal emulation windows or gaim windows, rightclick and
choose "X Input Method" first. |
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p****o
发帖数: 220 | 34 Bloodshed Dev-C++
Bloodshed Dev-C++ is a full-featured Integrated Development Environment (IDE)
for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler
Collection) as it's compiler. Dev-C++ can also be used in combination with
Cygwin or any other GCC based compiler.
Features are :
- Support GCC-based compilers
- Integrated debugging (using GDB)
- Project Manager
- Customizable syntax highlighting editor
- Class Browser
- Code Completion
- Function listing
- Profiling support |
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b***t
发帖数: 1104 | 35 right click in task bar->tool bar->language bar |
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r****y
发帖数: 26819 | 36 office language tool
know |
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k**e
发帖数: 86 | 37 I tried, but it did not work.
Enabled languages: Chinese (Simplified), English (U.S.)
Default version of Microsoft Office: English (U.S.) |
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g******c
发帖数: 218 | 38 i reinstanlled win 2000 today, but forgot to choose simplified chinese
during installation. I tried language pack for xp, but it gives me weird
font. Now reading chinese is like studying someone's handwriting. Of
course my laptop can't locate the required files from my win 2000 cd. what
shall i do? thanks |
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e*******s
发帖数: 1363 | 39 regional and language options --> administrative --> change system locale
seems |
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r******t
发帖数: 20 | 40 才买的LENOVO的s12 是preinstalled windows xp w/o cd
ie能读中文 但是网页上标题都是一个个方框 安装不能正常显示
试着去install files for east asian languages, 但是都提示找不到文件
这些文件都在计算机里吗？是找不到还是根本就没有？
另外想下载IME也不行 根本就没有给xp的ime 说的好好的xp自带功能齐全的ime,郁闷死
了。
求高人指点！！！ |
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l***h
发帖数: 139 | 41 Regardless of whether they're exchanging credit information, purchase
orders, or anything else, before two companies can share data, they
have to agree on a common language. One of XML's main advantages is
that it provides a simple way to do this. XML stores the definitions
of tags relating to specific industries in files called Document Type
Definitions (DTDs). The files--often referred to as dictionaries,
vocabularies, or schemas--serve as a uniform source of data
definitions, so organizations |
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w*****s
发帖数: 122 | 42 From http://www.w3.org/Math/
Mathematical Markup Language (MathML)
MathML 1.01, a revised version of the W3C MathML 1.0 Recommendation (7th
April 1998), was released on 7 July 1999. As the first product
of the W3C Math working group, MathML is a low-level specification for
describing mathematics as a basis for machine to machine
communication. It provides a much needed foundation for the
inclusion of mathematical expressions in Web pages.
What is MathML?
MathML is int |
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l*****y
发帖数: 8 | 43 under windows platform, is there some c language package or lib for XML ?
thanks a lot |
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d*****u
发帖数: 17243 | 44 See the following from Scientific American online:
November 09, 2004
Speaking Tonal Languages Promotes Perfect Pitch
A new study concludes that young musicians who speak Mandarin Chinese can
learn to identify isolated musical notes much better than English speakers
can. Fewer than one American in 10,000 has absolute pitch, which means they
can identify or produce a note without reference to any other note. Also
called perfect pitch, this skill requires distinguishing sounds that differ
by just 6 |
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c***i
发帖数: 5 | 45 【 以下文字转载自 ChinaNews 讨论区 】
【 原文由 Chili 所发表 】
esp. for daigaku
read about a post on Chinese words in the traditional form just in here,
and dont bother to find it, the point i try to make is self bolstered
back in 3 years time when i flewfrom az to wa, a japanese old man(70)
talked with me across the aisle we were sitting aside,
this man is as kind as any japanese, and tried to make the conversation
he praised chinese traditional culture and esp its language. i still
clearly remember his use of th |
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z*********4
发帖数: 146 | 46 Myths and Realities: Best Practices for English Language Learners (Second
Edition)
by Katharine Davies Samway, Denise McKeon
Pub. Date: March 2007 Publisher: Heinemann
Format: Textbook Paperback, 224pp
ISBN-13: 9780325009896 ISBN: 0325009899
包子酬谢！ |
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s******s
发帖数: 13035 | 47 光是基本语法R很容易啦， 算是最最简单的language之一了。
不过具体要做什么， 都要去研究各个package。 |
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m****n
发帖数: 1066 | 48 R language,windows XP
用 FILE menu的（source R code....）打开一个script(saved in C:///...My
Documents)
却总是出现错误信息，
Error in setwd(dirIn) : cannot change working directory
这个怎么回事？
最后我 open script,,, 然后run all 打开了脚本。
但是 source r code 为什么不行呢？ |
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a****t
发帖数: 95 | 49 杂志聘language editor，需要母语为英文的，博士
生或博士后。请大家帮忙推荐一下。每篇文章50刀辛苦费。
有意者请联系
[email protected]
/* */ |
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z*********4
发帖数: 146 | 50 Myths and Realities: Best Practices for English Language Learners (Second
Edition)
by Katharine Davies Samway, Denise McKeon
Pub. Date: March 2007 Publisher: Heinemann
Format: Textbook Paperback, 224pp
ISBN-13: 9780325009896 ISBN: 0325009899
包子酬谢！ |
|
