由买买提看人间百态

topics

全部话题 - 话题: constant
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
w******g
发帖数: 2047
1
【 以下文字转载自 Military 讨论区 】
发信人: kayaker (霜晨の月), 信区: Military
标 题: 黑人学校和黑人世界的真相 - Chris Jackson
发信站: BBS 未名空间站 (Mon Dec 21 22:28:09 2015, 美东)
What is it Like to Teach Black Students?
by Christopher Jackson
Until recently I taught at a predominantly black high school in a
southeastern state. The mainstream press gives a hint of what conditions are
like in black schools, but only a hint. Expressions journalists use like “
chaotic” or “poor learning environment” or “lack of discipline” do... 阅读全帖
m**i
发帖数: 301
2
lz在什么州?看看以下rule可能有帮助:
Pacing
Many speeding tickets result from the police officer following or “pacing”
a suspected speeder and using his or her own speedometer to clock the
suspect’s speed. With this technique, the officer must maintain a constant
distance between the police vehicle and the suspect’s car long enough to
make a reasonably accurate estimate of its speed. Some states have rules
that the officer must verify speed by pacing over a certain distance. (For
example, at least one-eighth o... 阅读全帖
m**i
发帖数: 301
3
lz在什么州?看看以下rule可能有帮助:
Pacing
Many speeding tickets result from the police officer following or “pacing”
a suspected speeder and using his or her own speedometer to clock the
suspect’s speed. With this technique, the officer must maintain a constant
distance between the police vehicle and the suspect’s car long enough to
make a reasonably accurate estimate of its speed. Some states have rules
that the officer must verify speed by pacing over a certain distance. (For
example, at least one-eighth o... 阅读全帖
N******K
发帖数: 10202
4
来自主题: Faculty版 - NIH 2014 By the Numbers
看点在此
It is important to note that the success rates for targeted and investigator
-initiated RPG awards are primarily the same,
=============================================================
Rock Talk
Helping connect you with the NIH perspective
2014 By the Numbers
Posted on December 31, 2014 by Sally Rockey
Application and award summary data for fiscal year 2014 are now available in
the NIH Data Book. These data are of particular interest for all of us this
year, considering the historic low ... 阅读全帖
c**********e
发帖数: 2007
5
来自主题: JobHunting版 - C++ Q29: extern and const together
This question demonstrates the use of extern and const together.
a) It defines a global constant variable that can be referenced from other
modules.
This is correct (C++ Standard 7.1.1/6). It defines a global constant variable that can be referenced from other modules.
b) It references the global constant variable MaxElements declared in
another module.
This is incorrect. The initializer makes it a definition.See other comments.
d) It retrieves the global constant variable MaxElements declared
j**w
发帖数: 382
6
来自主题: JobHunting版 - 一道c++ primer的问题

ic is a constant. that is, the value of ic can not be changed.
(d) int * const cpi. It means, cpi is a constant, and cpi points to an int.
Since cpi is a pointer. "cpi is a constant" just means the cpi points to a "
fixed" address. Say nothing about the content of that fixed address.
If (d) is valid, we can do (*cpi)++. In this case, the value of ic is
changed. It's wrong.
For (e)
const int *const cpic. cpic is a constant, and is pointed to a const int.
Since ic is also a const int. It's good.
... 阅读全帖
i*******n
发帖数: 114
7
Apple的onsite面试。
面试了2个人,每人一个小时。
第一位老印,没什么刁难,主要针对简历上的项目逐个询问。后面了问了一些简单问题
。database里面有几种join,如何handle too many requests in a server(我回答set
up a proxy cache that has two threads running concurrently. One thread
is
taking the client requests and the other one forwarding the requests to
server if the number of requests is not surpassed. Use semaphore to
coordinate the two threads)
第二位是老中,应该是被他挂了。一上来就直接说中文,整个面试都是说中文。问的都
是很基础的问题,可惜我大都不会。
how many bits in Java int type? What is the largest negative and
po... 阅读全帖
M***6
发帖数: 895
8
来自主题: JobHunting版 - 问一个题目(Facebook)
嗯,可以constant memory。constant time我觉得是楼主笔误
[在 remus (没意思) 的大作中提到:]
:单链表反转是不可能在 constant time, constant memory 完成的。
h********e
发帖数: 88
9
来自主题: NextGeneration版 - 一个自闭孩子妈妈的亲身经历和感受
一个自闭孩子妈妈的亲身经历和感受(上)our journey
我孩子不到三岁,15个月因为发育滞后开始接受EI治疗,18个月时EI机构严重怀疑自闭
,排队几个月后21个月在美国top5的权威儿童医院拿到经典自闭的诊断之后一直接受强
度很大的各种训练。。我不常来逛这个坛子,因为我家孩子让我担心的地方,和这里家
长们通常讨论的东西,根本搭不上边。。大家在讨论怎么推娃,上什么兴趣班的时候,
我担忧的是怎么以后能够让娃生活自理,自立而不拖累这个社会,怎么学会和人交流(
说话都是其次的),奢侈点的想法是,怎么主流化,怎么能够自己有一个somewhat
meaningful的生活,父母离开人世的时候,也能让孩子可以有尊严的活着。我们这样家
庭的种种challenge,不是常人能够理解的,我也从没有奢望过普通父母能体会我们的
痛苦。。。但是看到了最近的热贴,有些id对我们这些可怜的家庭们的各种不太善意的
猜测,非常震惊。当然,也同时看到很多general ed, gifted ed的家长们的同情和爱
心,和让人温暖感动的话,在这里也想替我们这些家庭,谢谢你们的支持。
我的一个一直以来的想法,是增加A... 阅读全帖
B*****I
发帖数: 1378
10
☆─────────────────────────────────────☆
hopenicole (Nicole) 于 (Fri Nov 16 12:33:39 2012, 美东) 提到:
最近在parenting版面有很多关于special education的话题,有不少人讨论special
education funding是不是被abused了,是不是应该被cut一些,还有人甚至建议大家给
政府写信要求缩减这部分开支。之间也牵扯到ASD overdiagnosis的话题。我写了下面
这篇文章放在parenting版面。因为有很多科普内容,有网友建议我也贴到宝宝版。不
好意思,文章很长,在parenting版我是分成三贴,然后分段发的,在这里就group在一
起了。如果大家想要看的舒服些,原帖在这里。
http://www.mitbbs.com/article_t/Parenting/32013295.html
http://www.mitbbs.com/article_t/Parenting/32013315.html
http://www.mitbbs.com/... 阅读全帖
p*******e
发帖数: 986
11
来自主题: Parenting版 - Psychological Immunity (ZZ) (转载)
【 以下文字转载自 Jan2010_baby 俱乐部 】
发信人: powerwave (YY, My heart!), 信区: Jan2010_baby
标 题: Psychological Immunity (ZZ)
发信站: BBS 未名空间站 (Wed Sep 7 16:23:21 2011, 美东)
This is a great article to read:
Consider a toddler who’s running in the park and trips on a rock, Bohn says
. Some parents swoop in immediately, pick up the toddler, and comfort her in
that moment of shock, before she even starts crying. But, Bohn explains,
this actually prevents her from feeling secure—not just on the playground,
but in l... 阅读全帖
h********e
发帖数: 88
12
Ten Things Every Child with Autism Wishes You Knew
by Ellen Notbohm
Some days it seems the only predictable thing about it is the
unpredictability. The only consistent attribute -- the inconsistency. There
is little argument on any level but that autism is baffling, even to those
who spend their lives around it. The child who lives with autism may look "
normal" but his behavior can be perplexing and downright difficult.
Autism was once thought an "incurable" disorder, but that notion is
crumbli... 阅读全帖
t***h
发帖数: 2924
13
【 以下文字转载自 USANews 讨论区 】
发信人: willhung (黄威廉), 信区: USANews
标 题: 黑人学校和黑人世界的真相 - Chris Jackson (转载)
发信站: BBS 未名空间站 (Tue Dec 22 04:08:43 2015, 美东)
发信人: kayaker (霜晨の月), 信区: Military
标 题: 黑人学校和黑人世界的真相 - Chris Jackson
发信站: BBS 未名空间站 (Mon Dec 21 22:28:09 2015, 美东)
What is it Like to Teach Black Students?
by Christopher Jackson
Until recently I taught at a predominantly black high school in a
southeastern state. The mainstream press gives a hint of what conditions are
like in black schools, ... 阅读全帖
w********g
发帖数: 1529
14
来自主题: Working版 - 请问target bonus是什么意思?
Definition and Computation of Target Bonus Award
3.1 “Actual EVA” means the EVA as
calculated for each Participating Group for the year in question.
3.2 “Target EVA” for the year in question
means the level of EVA that is expected in order for the Participating Group
to receive the Target Bonus Award. Target EVA for the year in question is
determined as follows:
4
--------------------------------------------------------------------... 阅读全帖
a*******u
发帖数: 6324
15
嗐!轩哥,那不就是叫做Vibrato嘛。
就抖啊,就震啊,就一个词根啊。
http://en.wikipedia.org/wiki/Vibrato
http://zh.wikipedia.org/wiki/%E9%A1%AB%E9%9F%B3_(%E9%9F%B3%E6%A
颤音 (音乐)
维基百科,自由的百科全书
颤音是一种乐器技巧。
Vibrato
From Wikipedia, the free encyclopedia
Vibrato is a musical effect consisting of a regular, pulsating change of
pitch. It is used to add expression to vocal and instrumental music. Vibrato
is typically characterised in terms of two factors: the amount of pitch
variation ("extent of vibrato") and the speed with which the p... 阅读全帖
g****g
发帖数: 1828
16
来自主题: WaterWorld版 - Normal distribution
In probability theory, the normal (or Gaussian) distribution, is a
continuous probability distribution that is often used as a first
approximation to describe real-valued random variables that tend to cluster
around a single mean value. The graph of the associated probability density
function is “bell”-shaped, and is known as the Gaussian function or bell
curve:[nb 1]
f(x) = \tfrac{1}{\sqrt{2\pi\sigma^2}}\; e^{ -\frac{(x-\mu)^2}{2\sigma^2}
},
where parameter μ is the mean (location of the pe... 阅读全帖
c******o
发帖数: 1184
17
来自主题: WaterWorld版 - Zakaria: Will China stay on course?
Will China stay on course?
By Fareed Zakaria, CNN
Events in the Middle East and North Africa are of historic importance, but
the even bigger, long-term story is the rise of China. What path will it
choose at home and abroad in the years ahead?
For decades there has been debate at the highest levels of the Chinese
government about how much to modernize politically to ensure growth and
stave off revolution.
It’s notoriously difficult to analyze the inner workings off the Chinese
Communist Party. ... 阅读全帖
d**********o
发帖数: 1321
18
来自主题: WebRadio版 - 潜水员冒泡兼征版友意见
第一个项目report
这时偶刚到CSAC工作不久,与小A同学还不熟,我用的还是latex。随着贴的作业越来越
多,应该是用有共同爱好的小伙伴更亲密些。这次贴latex,下次才再org-mode。
\documentclass[b5paper,11pt, abstraction, titlepage]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{CJKutf8}
\usepackage{multirow}
\usepackage{multicol}
\usepackage{listings}
\usepackage{geometry}
\geometry{b5paper}
\usepackage{graphicx,floatrow}
\usepackage{graphicx,subfigure}
\newsavebox{\abstractbox}
\renewenvironment{abstract}
{\begin{lrbox}{0}\begin{minipage}{\t... 阅读全帖
d**********o
发帖数: 1321
19
来自主题: WebRadio版 - 潜水员冒泡兼征版友意见
第一个项目report
这时偶刚到CSAC工作不久,与小A同学还不熟,我用的还是latex。随着贴的作业越来越
多,应该是用有共同爱好的小伙伴更亲密些。这次贴latex,下次才再org-mode。
\documentclass[b5paper,11pt, abstraction, titlepage]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{CJKutf8}
\usepackage{multirow}
\usepackage{multicol}
\usepackage{listings}
\usepackage{geometry}
\geometry{b5paper}
\usepackage{graphicx,floatrow}
\usepackage{graphicx,subfigure}
\newsavebox{\abstractbox}
\renewenvironment{abstract}
{\begin{lrbox}{0}\begin{minipage}{\t... 阅读全帖
l**********t
发帖数: 5754
20
chapter 10.3 The Law Of This Spirit Of Life
“There is therefore now no condemnation to them that are in Christ Jesus,
who walk not after the flesh, but after the Spirit. For the law of the
Spirit of life in Christ Jesus hath made free from the law of sin and death
” (Rom. 8:1, 2, A.V.).
It is in chapter 8 that Paul presents to us in detail the positive side of
life in the Spirit. “There is therefore now no condemnation”, he begins,
and this statement may at first seem out of place here. Surely c... 阅读全帖
l**********t
发帖数: 5754
21
chapter 10.3 The Law Of This Spirit Of Life
“There is therefore now no condemnation to them that are in Christ Jesus,
who walk not after the flesh, but after the Spirit. For the law of the
Spirit of life in Christ Jesus hath made free from the law of sin and death
” (Rom. 8:1, 2, A.V.).
It is in chapter 8 that Paul presents to us in detail the positive side of
life in the Spirit. “There is therefore now no condemnation”, he begins,
and this statement may at first seem out of place here. Surely c... 阅读全帖
T*****n
发帖数: 2456
22
JOINT DECLARATIONON THE DOCTRINE OF JUSTIFICATION
by the Lutheran World Federation and the Catholic Church
Preamble
1.The doctrine of justification was of central importance for the Lutheran
Reformation of the sixteenth century. It was held to be the "first and chief
article"[1] and at the same time the "ruler and judge over all other
Christian doctrines."[2] The doctrine of justification was particularly
asserted and defended in its Reformation shape and special valuation over
against the Roman... 阅读全帖
S**U
发帖数: 7025
23
来自主题: Wisdom版 - 一个无信仰者对信仰的思考
尼采说过失去盲目的信仰之后,如何挣扎找到自己相信的美好。
Nietzsche's "Three Metamorphoses"
by Jason Francois
In the section of Thus Spoke Zarathustra entitled, "Of the Three
Metamorphoses,” Zarathustra describes a process of human transformation.
This transformation will become Zarathustra's answer to the fears and
anxieties created by the "death of God".
Nietzsche begins: "I name you three metamorphoses of the spirit: how the
spirit shall become a camel, and the camel a lion, and the lion at last a
child".
These metaphors... 阅读全帖
z*******3
发帖数: 13709
24
看了一遍我笑了
第一,楼主你这个高级黑啊
我都分不清楚你到底是在认同我还是在反对我
当然你有其他的原因,也行,蛮好
世界是多样的,但是你我在结果上的一致就可以了
你重复了我至少三个观点,都只说了原因不同
但是对结果居然均表示赞同
这就够了,我很感谢你,其实完全可以求同存异的
我不想奚落你,但是你的错误还是要改正
哈哈
第二
呢,本着讨论的态度,我点解你一点点
你应该把我以前贴认真看看再说
不要以为只有你知道enum是个class,我早就说过enum是有限个的class
java只有一种结构,就是class,但是我隐约觉得这是白说,估计没几个看懂
这是流行答案
No, you can't do this in Java. Aside from anything else, d would then
presumably be an instance of A (given the normal idea of "extends"), but
users who only knew about A wouldn't know about it - which defeats the poi... 阅读全帖
z*******3
发帖数: 13709
25
看了一遍我笑了
第一,楼主你这个高级黑啊
我都分不清楚你到底是在认同我还是在反对我
当然你有其他的原因,也行,蛮好
世界是多样的,但是你我在结果上的一致就可以了
你重复了我至少三个观点,都只说了原因不同
但是对结果居然均表示赞同
这就够了,我很感谢你,其实完全可以求同存异的
我不想奚落你,但是你的错误还是要改正
哈哈
第二
呢,本着讨论的态度,我点解你一点点
你应该把我以前贴认真看看再说
不要以为只有你知道enum是个class,我早就说过enum是有限个的class
java只有一种结构,就是class,但是我隐约觉得这是白说,估计没几个看懂
这是流行答案
No, you can't do this in Java. Aside from anything else, d would then
presumably be an instance of A (given the normal idea of "extends"), but
users who only knew about A wouldn't know about it - which defeats the poi... 阅读全帖
z*******3
发帖数: 13709
26
看了一遍我笑了
第一,楼主你这个高级黑啊
我都分不清楚你到底是在认同我还是在反对我
当然你有其他的原因,也行,蛮好
世界是多样的,但是你我在结果上的一致就可以了
你重复了我至少三个观点,都只说了原因不同
但是对结果居然均表示赞同
这就够了,我很感谢你,其实完全可以求同存异的
我不想奚落你,但是你的错误还是要改正
哈哈
第二
呢,本着讨论的态度,我点解你一点点
你应该把我以前贴认真看看再说
不要以为只有你知道enum是个class,我早就说过enum是有限个的class
java只有一种结构,就是class,但是我隐约觉得这是白说,估计没几个看懂
这是流行答案
No, you can't do this in Java. Aside from anything else, d would then
presumably be an instance of A (given the normal idea of "extends"), but
users who only knew about A wouldn't know about it - which defeats the poi... 阅读全帖
z*******3
发帖数: 13709
27
看了一遍我笑了
第一,楼主你这个高级黑啊
我都分不清楚你到底是在认同我还是在反对我
当然你有其他的原因,也行,蛮好
世界是多样的,但是你我在结果上的一致就可以了
你重复了我至少三个观点,都只说了原因不同
但是对结果居然均表示赞同
这就够了,我很感谢你,其实完全可以求同存异的
我不想奚落你,但是你的错误还是要改正
哈哈
第二
呢,本着讨论的态度,我点解你一点点
你应该把我以前贴认真看看再说
不要以为只有你知道enum是个class,我早就说过enum是有限个的class
java只有一种结构,就是class,但是我隐约觉得这是白说,估计没几个看懂
这是流行答案
No, you can't do this in Java. Aside from anything else, d would then
presumably be an instance of A (given the normal idea of "extends"), but
users who only knew about A wouldn't know about it - which defeats the poi... 阅读全帖
M****z
发帖数: 1058
28
来自主题: Programming版 - agile 说白了就是让外行中间人滚蛋
其实各方面都会存在这样的人,不过非技术人员概率更大,因为他们不是工具的直接使
用者。
这篇文章我觉得靠谱,希望有帮助:
Why Agile Is So Hard
http://www.uxmatters.com/mt/archives/2013/08/why-agile-is-so-ha
Is agile a dirty word in your company or among the members of your UX team?
Do you hear the term lean UX and groan? It’s okay—and not really
surprising—if your answer is yes. Agile is hard, and we all know it. But
since agile is likely to stick around for a while, I’m sure you’ve thought
about how to make it easier.
However, the question shouldn’t be h... 阅读全帖
S*A
发帖数: 7142
29
来自主题: Programming版 - C++ pointer to function is buggy
C++ 我不熟悉啊,C 我还略知道一点。
这个相关的规定在 C99 6.6.9 Constant Expression 章节里面。
也就是说,地址表达式可以 “&” 取地址是显式取地址,
然后也可以对数组和函数隐含取地址,不需要 “&”。
数组和函数的地址是特例,取地址可以隐含,因为数组和函数的
本来使用都用特殊语法后缀,数组要后面有 【】,函数后面有()。
所以没有后缀的用法就可以分别定义。这里退化为地址是最自然的。
注意看原文里的 “implicitly" use an expression of array or function type.
9.
An address constant is a null pointer, a pointer to an lvalue designating an
object of static
storage duration, or a pointer to a function designator; it shall be created
explicitly using
the unary & operator or an inte... 阅读全帖
l**********n
发帖数: 8443
30
来自主题: Programming版 - scala最烦人的是build太不容易了
Somebody has idea on the following error:
Information:Compilation completed with 1 error and 8 warnings in 2 sec
Information:1 error
Information:8 warnings
Error:scalac: Error: org.jetbrains.jps.incremental.scala.remote.
ServerException
Error compiling sbt component 'compiler-interface-2.9.1.final-52.0'
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$
apply$2.apply(AnalyzingCompiler.scala:145)
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$
appl... 阅读全帖
v******y
发帖数: 84
31
这是我做的10题,大家试试
以后公布答案
Which of the following is the most portable way to declare a C preprocessor
constant for the number of seconds in a (non-leap) calendar year?
Response:
#define SECONDS_PER_YEAR 60 * 60 * 24 * 365
#define SECONDS_PER_YEAR 60 * 60 * 24 * 365;
#define SECONDS_PER_YEAR (60 * 60 * 24 * 365UL)
#define SECONDS_PER_YEAR (60 * 60 * 24 * 365)
Score 1 of 1
Question:
Which of the following is the most flexible way to declare a C preprocessor
macro that takes two arguments and returns th... 阅读全帖
v*****s
发帖数: 20290
32
我知道的这个方法就是测分子在溶液里面的diffusion constant,还是make sense的。
你这么想两个极端情况,分子完全不动,那你的time trace要么是0,要么是1,反正是
个constant,time correlation是1,分子动得特别快,time trace都是从0一下子跳到
1,或者从1一下子跳到0,time correlation是0。其他时候介于两者之间,分子扩散越
快,time correlation越小。其中还有一个参数是分子体积,如果分子体积已知,就可
以算diffusion constant,反过来如果diffusion constant已知,就可以算分子体积。
不知道怎么测细胞。
v*****s
发帖数: 20290
33
我知道的这个方法就是测分子在溶液里面的diffusion constant,还是make sense的。
你这么想两个极端情况,分子完全不动,那你的time trace要么是0,要么是1,反正是
个constant,time correlation是1,分子动得特别快,time trace都是从0一下子跳到
1,或者从1一下子跳到0,time correlation是0。其他时候介于两者之间,分子扩散越
快,time correlation越小。其中还有一个参数是分子体积,如果分子体积已知,就可
以算diffusion constant,反过来如果diffusion constant已知,就可以算分子体积。
不知道怎么测细胞。
f*****0
发帖数: 489
34
来自主题: EE版 - 请教:bandgap的一个问题
"Then where does this constant current initially come from? tell me on the
picture you post, where does constant current come from?"
I am surprised that after finishing the analysis (which is correct by the
way), you still couldn't figure out that question by yourself.
lm113 is a constant voltage diode. through the banggap reference, it
maintains a constant voltage between terminal 1 and 2.
That voltage drop is also split between R1 and Q1 ('s Vbe), and R4 and Q2('s
Vbe). so the current going th
c********n
发帖数: 258
35
来自主题: EE版 - HFSS基本问题一问
多谢,但是从理论上来说,如果仿真的结构就是一段单纯的有损传输线,加上两个
wave port的话,那Port solution给的attenuation constant, 跟用s参数反推出
来的attenuation constant应该是一致的吧,因为wave port物理上代表的的应该
就是跟这段传输线同样截面的半无限长传输线.
我有点奇怪的是我的仿真结果s参数很奇怪,感觉S21跟port solution 里面给的
attenuation constant 对不上,不知道是不是我的边界条件设置不对.
但是现在我也不需要涉及到实际measurement,只需要一个理论计算值就可以,时间也
比较紧,这种情况下我用Port solution里面给的attenuation constant,是不是就可以
作为该段传输线的损耗系数了? 当然我会选取正确的模式的值.

port
roughness
R********n
发帖数: 519
36
来自主题: Mathematics版 - 请问一个关于微分几何的问题
谢谢你的回答:-),赞!
就是说sectional curvature而言,其实就是你说的这3种情况
局部和全局我可能表达得不好,恩,是不是有这么一种情况,就是一个manifold,局部
曲率变化比较慢,可以认为近似constant,但是全局还是有变化的,不是不变的?~~这
是从应用出发的一个猜想,不知道是否合适
也谢谢你说的内蕴和外蕴曲率,我的理解是是不是内蕴曲率就是在manifold上面观察自
己,而外蕴则是嵌入到一个更高维空间,比如欧式空间,然后再观察。
所以你的意思是曲线的内蕴曲率是0,只有在外维空间来看,才有positive or
negative的曲率
我觉得从自己的应用出发,外蕴曲率对于很重要,我在欧式空间来观察这个manifold,
比如1D curve在R^2 or R^3来观察。这样的话,global constant curvature和local
constant(or local approximate constant curvature)d
的结论是不是还是和前面一样呢?
更进一步,一个高维Riemannian manifold,嵌入到R^N中间,怎么观察
a*********3
发帖数: 660
37
定义 definition变量 variable面积 area直径 diameter半径 radius公式 formula
单价 unit price范围 range/scope/extent集合 set法则 principle本金 principal利
率 interest rate利息 interest单利 simple interest复利 compound interest正数
positive number负数 negative number解析式 analytic expression分类讨论
classified discussion性质 nature (不是很确定)奇函数 odd function偶函数
even function对称 symmetric坐标原点 origin单调性 monotonicity(不是很确定)
任意 random周期性 periodic 有界性 boundedness 数学 mathematics, maths(BrE)
, math(AmE) 公理 axiom 定理 theorem 计算 calculation 运算 operat... 阅读全帖
c**********g
发帖数: 222
38
来自主题: Science版 - cosmo.1

The SIGN of the cosmological constant Einstein introduced in order to offest
the expansion of the universe is OPPOSITE to the SIGN of the current
favorite cosmological constant.
In the cosmological dynamical equation: H^2+k/a^2=\rho. here, a is
the scale fator of the universe, H is hubble constant. k=-1,0,1.
\rho=\rho_matter+\rho_lambda is the cosmological density. static universe
requires H=0. when k=0, \rho=0. a negative cosmologicl constant (but pressure
is positive) can satisfy this
w**d
发帖数: 2334
39
来自主题: Science版 - Re: Gibbs phenomenon wiggles?
an example of gibbs phenomenon: when you interpolate the
step function, the size of overshooting near the incontinuity
goes to the
product of a constant and the jump of step function.
this constant is about 9%(not sure ) theoretically.
I don't know what is Gibbs phenomenon wiggles.
BTW, who knows the constant in computation?
In my program, when I increased the number of interpolation basis,
the constant is only close to 14%.
f*******d
发帖数: 339
40
来自主题: Science版 - 关于大爆炸理论
There is no such thing as "safe". Every assumption must be tested. In the standard cosmological model,
the fundamental physical constants are assumed to be constant. However, there are various
models where these constants vary in some way,
and would produce observational effects. The first such
varying constant model was proposed by Dirac in 1930s (or 40s, I don't remember), but that model was ruled out. However, there are many other models floating around, and each year there
are maybe a few do
d*******a
发帖数: 233
41
来自主题: Statistics版 - 请教个AR(1)的问题 - 包子求解
Fix x0应该不影响stationay吧,stationary的条件不就是E=constant和variance等于
constant?你的意思是说如果x(0)是个random variable的话,AR(1)可以得到expected
value=constant?
那我如果说一个AR(1)process, 在任何时间t, E(Yt) = constant,有没有错?

solve
n*****s
发帖数: 343
42
发信人: hopenicole (Nicole), 信区: Parenting
标 题: Re: 一个自闭孩子妈妈的亲身经历和感受(中)
发信站: BBS 未名空间站 (Fri Nov 16 04:01:18 2012, 美东)
Ten Things Every Child with Autism Wishes You Knew
by Ellen Notbohm
Some days it seems the only predictable thing about it is the
unpredictability. The only consistent attribute -- the inconsistency. There
is little argument on any level but that autism is baffling, even to those
who spend their lives around it. The child who lives with autism may look "
normal" but his behavior ca... 阅读全帖
B*V
发帖数: 3365
43
http://www.theatlantic.com/china/archive/2013/12/the-american-w
From 1944, when the 23-year-old Sidney Rittenberg first arrived in China
with the U.S. Army, to his departure 35 years later, no other foreign
national played as important a role in the country. A Chinese linguist and
Communist sympathizer, Rittenberg served as a friend, confidante, translator
, and journalist for the Communist Party leadership after first encountering
them at their Yan'an base in 1946. During the first three decade... 阅读全帖
F*V
发帖数: 3978
44
来自主题: ChinaNews2版 - 挪威杀人狂在宣言中多处提到中国
挪威杀人狂在宣言中多处提到中国 (2011-08-15 17:41:27)转载▼
信源:张翼博客|编辑:2011-07-27|
While a significant number of citizens in Islamic or Muslim countries are
directly hostile to Europeans, Chinese are usually just after your money. It
is unbearable to live the rest of your life in a country where there is a
constant and an overwhelming danger of being “Shanghaied”. My stepmother
was the Norwegian Vice Counsul in Shanghai and I know several Europeans
working there. They are willing to “cope” for the duration of thei... 阅读全帖
s****n
发帖数: 786
45
原帖:http://www.xycq.net/forum/thread-233031-1-1.html
While a significant number of citizens in Islamic or Muslim countries are
directly hostile to Europeans, Chinese are usually just after your money. It
is unbearable to live the rest of your life in a country where there is a
constant and an overwhelming danger of being “Shanghaied”. My stepmother
was the Norwegian Vice Counsul in Shanghai and I know several Europeans
working there. They are willing to “cope” for the duration of their
company te... 阅读全帖
S*R
发帖数: 1057
46
http://bbs.m4.cn/thread-3140729-1-1.html
While a significant number of citizens in Islamic or Muslim countries
are directly hostile to Europeans, Chinese are usually just after your money
. It is unbearable to live the rest of your life in a country where there is
a constant and an overwhelming danger of being “Shanghaied”. My
stepmother was the Norwegian Vice Counsul in Shanghai and I know several
Europeans working there. They are willing to “cope” for the duration of
their company term, ... 阅读全帖
w*********g
发帖数: 30882
47
挪威杀人狂在宣言中多处提到中国 (2011-08-15 17:41:27)转载▼
信源:张翼博客|编辑:2011-07-27|
While a significant number of citizens in Islamic or Muslim countries are
directly hostile to Europeans, Chinese are usually just after your money. It
is unbearable to live the rest of your life in a country where there is a
constant and an overwhelming danger of being “Shanghaied”. My stepmother
was the Norwegian Vice Counsul in Shanghai and I know several Europeans
working there. They are willing to “cope” for the duration of thei... 阅读全帖
M******8
发帖数: 10589
48
http://www.ft.com/cms/s/2/533a6374-1fdc-11e3-8861-00144feab7de.
By Jamil Anderlini
As the economy slows and middle-class discontent grows, it is the question
that’s now being asked not only outside but inside the country. Even at the
Central Party School there is talk of the unthinkable: the collapse of
Chinese communism
http://im.ft-static.com/content/images/07b7be80-1ffd-11e3-8861-
Tiananmen Square, Beijing, last month
Tucked away between China’s top spy school and the ancient imperial summer
... 阅读全帖
b********n
发帖数: 38600
49
http://www.theatlantic.com/china/archive/2013/12/the-american-w
From 1944, when the 23-year-old Sidney Rittenberg first arrived in China
with the U.S. Army, to his departure 35 years later, no other foreign
national played as important a role in the country. A Chinese linguist and
Communist sympathizer, Rittenberg served as a friend, confidante, translator
, and journalist for the Communist Party leadership after first encountering
them at their Yan'an base in 1946. During the first three decade... 阅读全帖
p****s
发帖数: 3184
50
摘要:
In market economies, per capita GDP is directly proportional to the
population fraction with verbal IQ equal to or greater than 106.
We can make a pretty good guess. In all his versions, Man is the product of
adaptation to environments that existed more than 50,000 years ago. Africa,
Europe and Asia presented three distinct adaptational challenges resulting
in three major races: Negroid, Caucasoid and Mongoloid, each differing from
the other in certain physical, mental and psychological aspe... 阅读全帖
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)