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全部话题 - 话题: notation
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m*******l
发帖数: 12782
1
☆─────────────────────────────────────☆
manbeing (牛奶儿) 于 (Tue Apr 3 13:22:49 2012, 美东) 提到:
本来对于使用AP没有任何疑问,可是刚才律师说这个是个灰色地段,用了AP会影响H1B
status。因为如果是用AP入境,入境的时候海关会给一张新的I-94,上面写的是AOS(
有效期是一年),I-94是我们在美国合法身份的文件。换句话说一旦用AP入境,我们就
成了patrol status了。将来如果要延H1B,就拿不出有效的I-94了。
☆─────────────────────────────────────☆
milla (mimi) 于 (Tue Apr 3 13:58:58 2012, 美东) 提到:
Why you need to renew your H-1B since you will get your green card
eventually ?
☆─────────────────────────────────────☆
manbeing (牛奶儿)... 阅读全帖
y*****o
发帖数: 909
2
来自主题: EB23版 - TSC的错
我的485 receipt上的 preference classification是 203 B3 AII PROFESSIONAL, 查
了查murphy law,上面这个应该是EB3的。
不过receipt上的PD 是EB3的RD,不是我EB2的PD。
murphy law上这么说的:
EB3 for Professionals
The professionals classification is for individuals who hold at least a U.S.
bachelor's degree, or a foreign equivalent, and who are members of the
profession. When the USCIS issues a receipt and approval notice in the EB3
category, it usually contains the notation: "Skilled Worker or Professional,
Sec 203(b)(3)(A)(i)" or "(ii)."
... 阅读全帖
w*s
发帖数: 7227
3
【 以下文字转载自 Programming 讨论区 】
发信人: wds (心开运就通,运通福就来), 信区: Programming
标 题: Amazon EC2 Q: what's the source ip for security group ?
发信站: BBS 未名空间站 (Sun Oct 13 14:22:44 2013, 美东)
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-
Adding a Rule for Inbound SSH Traffic
To add a rule to a security group for inbound SSH traffic
in the Source box, specify the public IP address of your computer, in CIDR
notation. For example, if your IP address is 203.0.113.25, specify 203.0.113
.25/32 to li... 阅读全帖
D****g
发帖数: 2860
4
来自主题: BrainTeaser版 - 步行上学.
Hmm, I've never seen people using this notation. I seriously doubt. Anyway,
() notation is universal.
l*y
发帖数: 21010
5
https://www.youtube.com/watch?v=eZeYw1bm53Y
http://www.nme.com/blogs/nme-blogs/the-incredible-way-michael-j
The news of 'Xscape', a posthumous album of Michael Jackson's archive
material 'contemporized' by Epic boss LA Reid, has arrived the same week
that an old demo of 'Beat It' has been doing the rounds. It shows Jackson's
extraordinary process of writing songs by building each element of a track
with his voice - every note of every chord, harmony, melody, bass and even
the rhythm through beat... 阅读全帖

发帖数: 1
6
读来读去,不知道为什么create一个wiki account ,, 我想我是走火入魔了。the
parsimony law 说,一切简单,....
This article uses forms of logical notation. For a concise description of
the symbols used in this notation, see List of logic symbols.
In classical logic, the law of non-contradiction (LNC) (or the law of
contradiction (PM) or the principle of non-contradiction (PNC), or the
principle of contradiction) is the second of the three classic laws of
thought. It states that contradictory statements cannot both be true in the
s... 阅读全帖
m****i
发帖数: 1076
7
来自主题: MusicPlayer版 - Blues Lesson (1)[转载]
Lesson: 1
Title: BASIC BLUES
Level: Beginner (+Intermediate)
Style: 12-bar Blues, theory
Instructor: Olav Torvund
[Editor's note - Olav is sending us this lesson for Norway. Some of
the musical terms he is using are spelled slightly differently from the
way they are spelled in the U.S. (they are probably closer to the Latin
than English allows) Wherever these spelling differences occur, I
have added the U.S. English equivalent initially, but have left them
in their original spelling thro... 阅读全帖
m****i
发帖数: 1076
8
来自主题: MusicPlayer版 - Blues Lesson (10)
Lesson: 10
Title: How Chords work
Level: Beginner
Style: Theory
Instructor: Tim Fullerton
This is something that I wrote some time ago that I keep on hand as a
FAQ
when people ask about how chords work.
This explanation of harmony really depends on your understanding
the major scale and how it works. If you don't drop me a line and I'll
take a stab at that.
Given that the major scale is the thing that sounds like
"Do re mi fa sol la ti (do)", let us change each of those syllables to
the numbers ... 阅读全帖
M****n
发帖数: 399
9
来自主题: Rock版 - 史塔克豪森
俩字:牛B。Chris Brown说,六十年代当他还是大学生的时候, 史哥在纽约的表演能够
出现在Times的封面。如今这种现象不复存在了。
在一个学建筑的人的眼中看来,他绝对是用建筑师的思维来创作音乐,创造听觉空间。与
同时代的其他音乐家不同,他很看重Documentation, 无数蓝图,结构图, 流程与节点图
。因此今天我们仍然能看到制作精美的画册,详细描述了当时他作品的制作过程,包括演
出时具体设备的组成和流程。
首先是他的Notation, 他自己发展了一套Notation系统,在不同小节,连Filter的具体参
数设置都被详细标明。
今天Chris
Brown给我们展示了他收藏的史塔克豪森六十年代的作品:Solo的Documentation,里面包
括他当年使用的设备的照片,电路连接图,设计图,以及乐谱。他在Tape经过的途中连续
使用六个录音头,每一个连接某种电路产生Feedback, 然后在乐谱上表明在不同的小节让
六个录音头产生的声音进行不同的控制,从而在那个尚未出现电脑音乐的时候可以用仪器
来产生丰富的Delay。
说者一半,跟老史相熟的Pauline Oliver
g****g
发帖数: 1828
10
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
t******n
发帖数: 2939
11
来自主题: WaterWorld版 - [合集] 肖氏手术国外临床试验情况
☆─────────────────────────────────────☆
boilingsnow (沸腾的雪) 于 (Tue Mar 27 09:08:22 2012, 美东) 提到:
教主拉的屎总是时不时被教徒捡去吃。
全世界泌尿学界专业人士都不知道肖氏手术是非原创的,却被教主发现了!
☆─────────────────────────────────────☆
locarno (May the Force be with you) 于 (Tue Mar 27 09:18:51 2012, 美东) 提到:
即便你说的是真的,又怎么样?现在几乎说有新的医疗方式/药物,都是先动物实验,
难道这和你理解的常识/科学又不一致了?
☆─────────────────────────────────────☆
garnetcrow (kikicoco) 于 (Tue Mar 27 09:36:42 2012, 美东) 提到:
肘粉都是这种智障,现在有几个手术是发明最初就在人身上做,一次成功的?

☆─────────────────────────────... 阅读全帖
t*******r
发帖数: 22634
12
另外我对这个问题感兴趣,主要是娃的教育问题。毕竟娃的将来中学数学教材
还是基于古典数学的。
我个人的感觉,formal logic 概念的数学思维,从大脑思维角度,相对而言
更加 spatial。而古典数学(比如欧几里德之类的)数学思维,从大脑思维角
度,相对而言更加 sequential。
我在想,是不是中学数学,除了打个数学基础以外,更加有用的是作为哲学教育
的存在(哲学教育总不能光聊空洞的问题吧)。等到娃意识到罗素悖论之类的
悖论以后,数学教育,在概念方面,其实可以直接上 formal logic。
(当然,不要用数学家的一对晦涩的 notation 就是了,表达概念不需要
notation)。
t*******r
发帖数: 22634
13
楼主首贴里面的逻辑很牛逼,但伊还是引用了素数的递归定义。
现在的问题是,素数的递归定义引起混淆和争论。为了平息争论,所以想用某种
formal system 的 notation 来精确定义一下素数的递归定义。
当然,你说的对,LR grammar 的确用词不精确,LR grammar 不定义语义。
用 yacc 还是精确点。
所以也就是用 yacc 来定义一下楼主首贴证明里面所引用的“素数的递归定义”。
当然,其实不限于 yacc。任何 formal system 的 notation 方式都可以。
只不过素数的递归定义比较简单,用 yacc 就可以定义。

CFL
t******l
发帖数: 10908
14
你这个 pi 就是 1,你就是换了个打字符号,也就是说,换了个 notation。
Formal Logics 的基本要求,就是意义与 notation 用啥符号无关。
另外你是马工还是钱老?按理说马工不该吭哧吭哧钻这牛角尖。
c****t
发帖数: 19049
15
来自主题: SciFiction版 - 云图 英文版
LETTERS FROM ZEDELGHEM
CHATEAU ZEDELGHEM,
NEERBEKE,
WEST VLAANDEREN
29TH-VI-1993
Sixsmith,
Dreamt I stood in a china shop so crowded from floor to far-off ceiling with
shelves of
porcelain antiquities etc. that moving a muscle would cause several to fall
and smash to bits.
Exactly what happened, but instead of a crashing noise, an august chord rang
out, half-cello,
half-celeste, D major (?), held for four beats. My wrist knocked a Ming vase
affair off its
pedestal—E-flat, whole string section, g... 阅读全帖
h*******e
发帖数: 404
16
Preview is pretty good for pdf reading and notation.
Skim is good, but you should be careful if you use dropbox to synchronize
since the notes might be lost during syncing.
Papers2 is now great not only as a personal library, but also as a tool for
pdf reading and notation, and reference citation.
h****t
发帖数: 93
17
//cft. i have the same feeling, especially now most ppl are educated by
OO model for years and those concept are already in ppl's blood. in this
year's oopsla, there are someone presenting new OO language notations,
which is different from classic notation. there was guys asking why you
propose this while software developer are familiar with the opposite?
it's inherently hard to answer this kind problems.
c***u
发帖数: 843
18
碰到了一个问题,就是从txt文件中读取数据,数据是两列scientific notation的。用
下面的方法读取,出现了精度丢失方面的问题.
ifstream infile;
.....
....
string line;
long double x;
long double y;
while(getline(infile,line))
{
stringstream stream(line);
stream>>x>>y;
...
...
}
数据是scientific notation的,***********E**,E前面的数字很长,我个人觉得是,
在stream>>x>>y这一步进行string到long double的type conversion的时候,精度丢失
了。 譬如本来的data是0.00179,结果读出来的x变成了0.0018。
对于这个问题应该怎么解决啊。。期待牛人。
y****9
发帖数: 144
19
Original question:

mySQL中"select by primary/unique key的速度" 与 "number of rows in a table= N
" 有关吗?是O(LOG(N))的关系吗?

If we understand the original question as the relationship between the cost
of index access and the table length, my opinion is that they do not have
direct relashionship. Big-O notation is used to analyze algorithm's
efficiency and complexity, it seems not appropriate to be used to describe
such a relathiship
based on Jonathan Lewis's CBO book, the cost of a simple B... 阅读全帖
w*s
发帖数: 7227
20
【 以下文字转载自 Programming 讨论区 】
发信人: wds (心开运就通,运通福就来), 信区: Programming
标 题: Amazon EC2 Q: what's the source ip for security group ?
发信站: BBS 未名空间站 (Sun Oct 13 14:22:44 2013, 美东)
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-
Adding a Rule for Inbound SSH Traffic
To add a rule to a security group for inbound SSH traffic
in the Source box, specify the public IP address of your computer, in CIDR
notation. For example, if your IP address is 203.0.113.25, specify 203.0.113
.25/32 to li... 阅读全帖
a********e
发帖数: 79
21
来自主题: Programming版 - 有谁看过youtube上的算法课吗?
写点听课笔记吧。
lecture one:
two examples: interstion sort and merge sort.
Analyze the running time.
Asymptotically analysis.
Big O notation.
Recursion tree and get the running time for merge sort.
lecture two:
More rigorous for the material for lecture one.
big O \Theta \Omega small o \omega notation.
Recursion tree method.
Master theorem (sketch of proof).
lecture three:
Divide and conquer.
Examples:
1. Binary search
2. X^n
3. Finbonacci
4. Matrix multiplication and Strassen's algorithm
5. VLSI layou... 阅读全帖
n*w
发帖数: 3393
22
来自主题: Programming版 - Linq不是syntactic sugar
下班浏览的一下goodbug给的那篇硕士thesis。先不说论文质量。通篇也没说linq是
syntactic sugar。
其中涉及linq和syntactic sugar有关系有两处。
1. A number of new features were added to C# 3.0 in order to provide LINQ.
Individually most of these features can be classified as syntactic sugar
that, while helpful in cutting down on the tediousness of repetitive code,
have viable – albeit more verbose – workarounds in the language。
这里讲到linq用了c# 3.0里syntactic sugar的语言features。最明显的应该是type
inference。很多情况linq返回的type非常复杂。type inference在这里是极方便。
2. The q... 阅读全帖
c******n
发帖数: 4965
23
来自主题: Programming版 - functional programming?
I don't really see the point of using functional programming languages for
real production projects, though clojure is very popular now.
my point is that in a few cases you do need to operate on functions, all
languages have such features: C has function pointers, java has anonymous
inner classes, python has lambda. it's just that they do not openly
advertise them as "functional".
but even clojure itself does not recommend using non-named functions
recursive, but isn't operating on functions th... 阅读全帖
c******n
发帖数: 4965
24
来自主题: Programming版 - functional programming?
I don't really see the point of using functional programming languages for
real production projects, though clojure is very popular now.
my point is that in a few cases you do need to operate on functions, all
languages have such features: C has function pointers, java has anonymous
inner classes, python has lambda. it's just that they do not openly
advertise them as "functional".
but even clojure itself does not recommend using non-named functions
recursive, but isn't operating on functions th... 阅读全帖
w*s
发帖数: 7227
25
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-
Adding a Rule for Inbound SSH Traffic
To add a rule to a security group for inbound SSH traffic
in the Source box, specify the public IP address of your computer, in CIDR
notation. For example, if your IP address is 203.0.113.25, specify 203.0.113
.25/32 to list this single IP address in CIDR notation. If your company
allocates addresses from a range, specify the entire range, such as 203.0
.113.0/24.
now my home pc says 192.168.... 阅读全帖
d*******e
发帖数: 4
26
Please polish your English. See parentheses below for corrections and
suggestions. Corrected those that are blatantly wrong. However, most non-
idiomatic usages are left untouched.
I don't really see the point of using functional programming languages for
real production projects, though clojure is very popular now.
my point is that in a few cases (WHERE) you do need to operate on functions,
all
languages have such features: C has function pointers, java has anonymous
inner classes, python has ... 阅读全帖
b***e
发帖数: 1419
27
来自主题: Programming版 - scala很牛啊
To understand filterM, let’s look at the simple filter function without the
involvement of monads:
filter :: (a -> Bool) -> [a] -> [a]
filter f [] = []
filter f (x:xs) =
let b = f x
in let rest = filter xs
in if b then x: rest else rest
This is straightforward and the following call:
filter (\x -> x > 2) [1,2,3]
will return:
[3]
Now let’s lift this definition to a monadic version:
filterM :: (Monad m) => (a -> M Bool) -> [a] -> M [a]
filterM f [] = return []
filterM f (x:xs) =
do b <- f... 阅读全帖
d****i
发帖数: 4809
28
来自主题: Programming版 - C++ set ctor的疑问
应该坚决反对s2的这种写法,根据manpage:
http://www.cplusplus.com/reference/set/set/set/
set s1(v.begin(), v.end());
就是用的两个iterator[first, last)的用法,清晰简单明了。而s2的话违反了数学上
定义一个集合的基本notation,就是一个集合应该写成
A = {a1, a2, ...., a_N}
而s2显然是混为一谈,把{}作为两个iterator的起点和终点来初始化定义了,这个和数
学的notation完全相背。所以s2是完全错误的用法。
s***t
发帖数: 195
29
better yet, define a macro for your notation. just need to redefine
the macro if you ever want to change the notation.
T*******n
发帖数: 493
30
From the American Mathematical Society "Mathematics Into Type" handbook
by Ellen Swanson (the typesetting guidelines for AMS journals), page 17,
use the $\exp$ notation instead of $e^{}$:
(1) to avoid double superscript
instead of $e^{x^2-1}$
use $\exp(x^2-1)$
(2) to avoid fractions in the superscript
instead of $e^{\frac{a-b}{c+d}}$
use $$\exp\biggl(\frac{a-b}{c+d}\biggr)$$
or $\exp((a-b)/(c+d))$
(3) to avoid cumbersome notation
instead of $e^{\sum_1^2 ab}$
use $$\ex
w*********s
发帖数: 2136
31
Jeffry John Aufderheide
vactruth.com
05/25/2010
http://vactruth.com/2010/05/25/vaccines-rockefeller-social-control/
PART I.
History books proclaim with absolute certainty that the pinnacle of public
health is defined by the polio vaccine program. Disease finally conquered by
science. The polio effort was a benchmark for the public to mentally accept
the concept “shots prevent disease.” However, hidden to most Americans
was an elaborate Public Relations scheme being carefully applied by
Rockefell... 阅读全帖
Q***5
发帖数: 994
32
Some of your notations are not used in their standard way, but if I
understand you correctly, your questions seem to related to the concept of
convulation of functions.
Using your notation in
INT f(x)h(x) dx < maxINT g(x)*h(x-t) dx
But I think your question is really whether the following is true:
max INT f(x)h(x-t)dx < max INT g(x)h(x-t)dx
where 'max' is taken with repect to t. ( note: INT f(x)h(t-x)dx is
called a convolution of f and h, very close to your integeration)
In general, this is not
z******a
发帖数: 5381
33
对的,这个notation真帅阿
短短一句就概括了一大堆。太有高手风范了。(这个不是说老张,而是所有发明并使用
这个notation的数学家)
w*********s
发帖数: 2136
34
来自主题: Pharmaceutical版 - ------ 疫苗产业与洛克菲乐集团 -------
Jeffry John Aufderheide
vactruth.com
05/25/2010
http://vactruth.com/2010/05/25/vaccines-rockefeller-social-control/
PART I.
History books proclaim with absolute certainty that the pinnacle of public
health is defined by the polio vaccine program. Disease finally conquered by
science. The polio effort was a benchmark for the public to mentally accept
the concept “shots prevent disease.” However, hidden to most Americans
was an elaborate Public Relations scheme being carefully applied by
Rockefell... 阅读全帖
F****I
发帖数: 270
35
来自主题: Physics版 - 我也来评评老温的量子力学
他在p62用(ψ',A†ψ)=(Aψ',ψ)定义算符的adjoint,说这个时候用Dirac
notation很难表达。但用这个关系的场合貌似远少于Dirac notation的优点。Dirac的
原理里基本用的是尖括号。。。
f*******d
发帖数: 339
36

I guess the notation depends on personal preference, I actualy like her
notation, which is very modern and mechanical.
She discuss a lot about the foundations of stat mech, such as ergodic
problem,
this topic are often omitted in other textbooks. Although some physicists
such as Landau consider it irrelevant to applications, I believe this
problem
is central to the understanding of stat mech. However, I guess unless one
has
learned some of the elementary materials elsewhere, it is almost imposs
b*****z
发帖数: 4
37
我有2个小问题,关于SAS用Gplot和Gchart作图的。
1。我用gplot作了一张图,里面比如说有三条curve,我想在每条线旁边加一个
notation,说明这是什么curve,有什么办法吗?我的意思是说,不用legend,
notation加在数轴附近,靠近相关curve的地方。
2。我用gchart作了一个pie chart,显示每个slice的percent。SAS给这个percent的缺
省格式是保留小数字后2位,我只想保留一位,怎么改这个显示百分比的格式呢?
多谢各位高人赐教,拜谢。
b*********n
发帖数: 2975
38
1. use footnotes
2. use format 2.2

我有2个小问题,关于SAS用Gplot和Gchart作图的。
1。我用gplot作了一张图,里面比如说有三条curve,我想在每条线旁边加一个
notation,说明这是什么curve,有什么办法吗?我的意思是说,不用legend,
notation加在数轴附近,靠近相关curve的地方。
2。我用gchart作了一个pie chart,显示每个slice的percent。SAS给这个percent的缺
省格式是保留小数字后2位,我只想保留一位,怎么改这个显示百分比的格式呢?
多谢各位高人赐教,拜谢。
b*****z
发帖数: 4
39
不好意思哈,没看明白,应该是我解释得不清楚,所以还得继续问一下下。
关于1,如果用footnotes,那么notation都会显示在图的bottom位置,我的意思是说,
有没有一种办法,让notation显示在图右侧的边缘,每个curve的旁边,专门说明这个
curve?
关于2,我作了一个pie chart,比如
proc gchart data=XXX;
pie variableA/type=percent;
quit;
这里variableA的类型是char,我选择显示每个slice的percent。SAS对这个percent的
缺省format是小数点后2位,比如2.12%,现在我被要求只显示1位,有办法做吗?我设
过format percent5.2之类的格式,但貌似在gchart里,只能对variableA设置format。
再次感谢哈。
s**c
发帖数: 1247
40
是不是notation的原因?
有些normal的notation用sigma,不是sigma^2的

N
m****s
发帖数: 18160
41
☆─────────────────────────────────────☆
whiteclouds (/ 参考消息 /) 于 (Tue Mar 22 18:47:29 2011, 美东) 提到:
投诉人: Whiteclouds
投诉对象:我爱宝宝版主mitbbx及版副catdoudou
投诉标题:投诉我爱宝宝版主mitbbx及版副catdoudou大搞新闻网禁误导广大家长
投诉目标:罢免
投诉理由:
1. 事关每个人身心健康。你们凭什么封禁医药界的负面消息和非主流消息?
2. 关于疫苗利弊的讨论早已进入主流媒体了。你凭什么不让大家看到?
3. 药品(包括疫苗)近年屡有recall. 你凭什么禁止有关信息来误导家里有小宝宝的父母去盲目迷信药品质量?
4. 美加庸医遍地都是,医疗事故屡见不鲜。你凭什么制造版面气氛让家长对处方和诊断不过脑子的去盲信?
5. 凡事要听多方面意见,有点科学精神,你们动辄删贴封人缺乏领导版面的基本素质
6. 为人父母要首先自己要学会尊重不同意见,不然以后怎么教育好孩子?
7. 综上所述,建议罢免!
发信人: whiteclouds (/ 参考消息... 阅读全帖
w*******y
发帖数: 60932
42
Link:
http://itunes.apple.com/us/app/guitar-pro/id400666114?mt=8
As a mobile player tie-in to Arobas Musics famous tablature software package
, Guitar Pro for iPod touch/iPhone/iPad is the ideal companion for you to
read and play your scores any time, anywhere!
Guitar Pro for iPod touch/iPhone/iPad carries the software's newest features
in terms of notation, and offers accurate visual and audio rendition of
your Guitar Pro scores.
Main features:
- Supporting GP3/4/5/6 (GPX) and PTB formats
- Loa... 阅读全帖
e*p
发帖数: 10
43
来自主题: Donation版 - 本站捐款第1-800笔清单
Did not find mine, it should be between 400 - 600. I notated as following
Date:
May 13, 2008
Time:
09:24:49 PDT
Status:
Completed
Payment Details
Amount: $100.00 USD
Transaction ID: 93135942L8075050U
Subject: Earthquake donation
c**i
发帖数: 6973
44
来自主题: History版 - Mathematics in Babylon
Edward Rothstein, Masters of Math, From Old Babylon; A precursor to the
theoretical flowering of Greek math. New York Times, Nov. 27, 2010.
http://www.nytimes.com/2010/11/27/arts/design/27tablets.html?_r=1&scp=3&sq=cuneiform&st=cse
Note:
(a) Pythagoras (c. 570- c. 495 BC)
Wikipedia
(b) The report states, "But Neugebauer, and then his many students and
rivals, also showed how sophisticated Babylonian mathematics was and how
many similarities existed to later Western systems ?if, that is, you coun... 阅读全帖
w****j
发帖数: 5581
45
来自主题: History版 - 努米底亚事务略 - 52
上次说到在25BC,Juba II已经准备好了去开始他的国王生涯,只缺一个王后。这里
我就讲一下Cleopatra Selene。我们知道,Caesar在44BC被刺后,罗马重新陷入混
乱和战争。第二年,在经历一系列斗争和妥协,Octavian,Antony,Lepidus形成了后
三头(The later triumvirs),并且开始追杀谋杀Caesar的那些人。在42BC Battle
of Philippi之后,Brutus和Cassius的死基本上结束了三头的这个政治追求。此时三头
的相对地位是这样的,Lepidus基本上已经被边缘化了,Antony的名声达到顶点,而
Octavian声势稍差。Philippi战后,Octavian因为在作战期间就病了,而且也因为政治
地位确实较Antony为低,就回意大利处理老兵战后的土地分配问题,这是个得罪人的苦
差事。而Antony则去东方的亚细亚和埃及,这本来是获得更多的金钱,军队,荣誉和地
位的任务,不过他不幸碰到并迷上了Cleopatra,而Appian对此的评价是他们之间的激
情把他们两个和整个埃及都毁了。
事实上,这次已经是A... 阅读全帖
t*******h
发帖数: 2882
46
三哥的的确比较变态。个、十、百、千、然后突然来个十万,再千万,百亿。数字分隔
的方法也很变态,先仨零,再俩零,。。。晕,三哥的数学不是盖的,和发愣西有一拼。
http://en.wikipedia.org/wiki/Indian_numbering_system
Hindi (transliteration) Indian figure Power
notation English figure Short scale English
(long scale English)
एक (ek) 1 100 1 one
दस (das) 10 101 10 ten
सौ (sau) 100 102 100 hundred
सहस्र (sahasra) /
हज़ार (ha... 阅读全帖
P*****l
发帖数: 438
47
对,老毛善于搞概念,notion.
有的人就会记 notation.
b***y
发帖数: 14281
48
Like I said, if you go to any textbook for QFT, there is never a
notation of ln, and yet, all log's are e-based.
h*****i
发帖数: 809
49
你是读一年data mining就去做金融吧?
什么都不懂就乱吹。你所讲的东西根本不属于data mining,属于hypothesis testing
。data mining是做hypothesis generation,不是testing。
没有人用什么A,F 完全不符合习惯。一般用H代表Hypothesis, E代表Evidence。
通常要检验的是P(H_1|E) v.s. P(H_0|E)。H_0一般指嫌犯无罪, not guilty
即使按照你的外行notation,P( A | F)的值也不说什么95%。P( A | F)是概率密度,
在连续的时候可以>1。你大概想说P(A|F)的95%置信区间不包括 H_0(憨憨not guilty
)。
基本概念都没弄懂,你后面的说法全部错误的。
j***o
发帖数: 2842
50
没有悬念
Our entire constitution was predicated on the notation that government is a
necessary evil, to be restrained and minimized as much as possible.
人几百年以前的宪法就明白的事情,我党现在都没有这个认识深度。小将们可以跪安了
可惜,美国人自己都把这些忘了,政府正在急剧扩大,这样看我党还是有希望的,呵呵
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