Sometimes I wonder, how many finance professors run investment funds. Economics professors guide countries provide healthy and wealthy economies. Maths professors predict financial markets and operate hedge funds. Etc. 有时我想知道，有多少位金融教授经营着投资基金。 经济学教授指导国家提供健康，富裕的经济。 数学教授预测金融市场并经营对冲基金。 等等。 How many trading books, are they good traders? Or mainly failed traders would use time to write books. Perhaps most holders of application degrees in such as management, laws, medicals would normally become practitioners. But other types of degrees? 几本交易书籍，他们是好交易者吗？ 或者主要是失败的交易员会花时间写书。 也许大多数管理，法律，医学等应用学位的持有者通常会成为从业人员。 但是其他类型的学位呢？
Here is my understanding: The origin of maths is to invent a way to solve a problem, systematically and practically. Nowsday, people can invent more new school of maths to analyse, explain and project changes of the universe. But do we need more and more new schools of maths (besides existing ones in the past) that would not be practically enough to solve problems, nor analyse/explain/project changes of the universe? If yes, all the maths in the past would have a systemic/wholistic/totalitic fault that so many mathematicians did not even care? So we need to develop more new maths. 这是我的理解： 数学的起源是发明一种系统地，实际地解决问题的方法。 如今，人们可以发明更多的新数学流派来分析，解释和预测宇宙的变化。 但是，我们是否需要越来越多的新数学流派（过去的数学流派除外），这些流派实际上不足以解决问题，也不足以分析/解释/预测宇宙的变化？ 如果是，过去的所有数学都会出现系统性/整体性/总体性的错误，所以许多数学家甚至都不在乎？因此，我们需要开发更多的新数学。
Here is my understanding: The origin of maths is to invent a way to solve a problem, systematically and practically. Nowsday, people can invent more new school of maths to analyse, explain and project changes of the universe. But do we need more and more new schools of maths (besides existing ones in the past) that would not be practically enough to solve problems, nor analyse/explain/project changes of the universe? If yes, all the maths in the past would have a systemic/wholistic/totalitic fault that so many mathematicians did not even care? So we need to develop more new maths. 这是我的理解： 数学的起源是发明一种系统地，实际地解决问题的方法。 如今，人们可以发明更多的新数学流派来分析，解释和预测宇宙的变化。 但是，我们是否需要越来越多的新数学流派（过去的数学流派除外），这些流派实际上不足以解决问题，也不足以分析/解释/预测宇宙的变化？ 如果是，过去的所有数学都会出现系统性/整体性/总体性的错误，所以许多数学家甚至都不在乎？因此，我们需要开发更多的新数学。
EvenOdd 发表于 2020-12-11 10:24
imo, another new set of maths would be simply like inventing another new magic, that would be good for entertainment, while bushfire is almost happening once every year, awaiting the best talents to solve this practical problem. What maths or new school of maths to be further developed can be used to solve this problem - like the origin of maths did? imo，另一套新的数学方法就像发明另一种新的魔术一样，很容易娱乐，而丛林大火几乎每年发生一次，等待着最优秀的人才来解决这一实际问题。 什么样的数学或新的数学学校可以用来解决这个问题-就像数学的起源一样？
Probably maths for the social worlld would be much more complex and counter-intuitive. Concerning more interactive and nonlinear problems. 可能社会学的数学将变得更加复杂和违反直觉。关于更多的互动和非线性问题。 Q Jul 6, 2016 — Fifteen years ago, Jay Forrester laid out the cornerstones for a more effective kindergarten through 12 th grade education based on system dynamics. In this paper, teachers and other educators who have been implementing system dynamics and systems thinking in schools across the country reflect on their progress.
System Dynamics for Kids - MITweb.mit.edu › sysdyn › sd-intro PDF In a reform movement led by two emeritus professors from MIT, “system dynamics” exercises like this one are helping to turn K-12 classrooms around the United States into high-performance learning centers. UQ
我不是数学专业的。
实变函数 学十遍都没有，想什么呢？
哈哈，赞题目，算术好的那是计算器！不过没写实变函数，把数学分析简化为微积分，不是合格的数学系学生啊
Sometimes I wonder, how many finance professors run investment funds. Economics professors guide countries provide healthy and wealthy economies. Maths professors predict financial markets and operate hedge funds. Etc. 有时我想知道，有多少位金融教授经营着投资基金。 经济学教授指导国家提供健康，富裕的经济。 数学教授预测金融市场并经营对冲基金。 等等。
How many trading books, are they good traders? Or mainly failed traders would use time to write books. Perhaps most holders of application degrees in such as management, laws, medicals would normally become practitioners. But other types of degrees? 几本交易书籍，他们是好交易者吗？ 或者主要是失败的交易员会花时间写书。 也许大多数管理，法律，医学等应用学位的持有者通常会成为从业人员。 但是其他类型的学位呢？
没有必然联系吧，美国就不太重视九九乘法表以上的心算能力，一般默认用计算器也行，把数算对了就成。
这看毕业多少年了吧，后来转方向不做这方面研究了忘记了很正常吧，难道你初高中竞赛里面那些奇怪奇怪的定理还记得么
只想说，MM你想多了。股市跟专业、学位的关系没有你想象的那么大。
Comprehension? 理解？
The trading related books are Not written by experienced traders? 与交易有关的书不是由有经验的交易员写的吗？
真要是有多年经验的我也不会问这种问题。我会集中问他以前的projects。刚从学校出来的，念了几年书，上了几门金工的课，问的不都是这种问题吗？我只是想看看这个人的数学有几斤几两。你可以在一门课上露怯，但总不能都露怯吧？问你Ito Lemma，你不知道？让你算个Duration，你不会，号称学过C++，结果不知道啥是boost。这总不可以吧。
The origin of maths is to invent a way to solve a problem, systematically and practically.
Nowsday, people can invent more new school of maths to analyse, explain and project changes of the universe.
But do we need more and more new schools of maths (besides existing ones in the past) that would not be practically enough to solve problems, nor analyse/explain/project changes of the universe?
If yes, all the maths in the past would have a systemic/wholistic/totalitic fault that so many mathematicians did not even care? So we need to develop more new maths.
这是我的理解： 数学的起源是发明一种系统地，实际地解决问题的方法。 如今，人们可以发明更多的新数学流派来分析，解释和预测宇宙的变化。 但是，我们是否需要越来越多的新数学流派（过去的数学流派除外），这些流派实际上不足以解决问题，也不足以分析/解释/预测宇宙的变化？ 如果是，过去的所有数学都会出现系统性/整体性/总体性的错误，所以许多数学家甚至都不在乎？因此，我们需要开发更多的新数学。
imo, another new set of maths would be simply like inventing another new magic, that would be good for entertainment, while bushfire is almost happening once every year, awaiting the best talents to solve this practical problem. What maths or new school of maths to be further developed can be used to solve this problem - like the origin of maths did? imo，另一套新的数学方法就像发明另一种新的魔术一样，很容易娱乐，而丛林大火几乎每年发生一次，等待着最优秀的人才来解决这一实际问题。 什么样的数学或新的数学学校可以用来解决这个问题-就像数学的起源一样？
按照中国的标准，您这孩子数学学的不好
😄😄……
Perhaps old-style maths is mainly concerning the natural world - intuitive. Like a special kind of languages or skills. 也许老式数学主要涉及自然世界-直观。像一种特殊的语言或技能。
Q https://sciencecouncil.org/about-science/our-definition-of-science/
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.
UQ
Probably maths for the social worlld would be much more complex and counter-intuitive. Concerning more interactive and nonlinear problems. 可能社会学的数学将变得更加复杂和违反直觉。关于更多的互动和非线性问题。
Q
Jul 6, 2016 — Fifteen years ago, Jay Forrester laid out the cornerstones for a more effective kindergarten through 12 th grade education based on system dynamics. In this paper, teachers and other educators who have been implementing system dynamics and systems thinking in schools across the country reflect on their progress.
System Dynamics for Kids - MIT web.mit.edu › sysdyn › sd-intro
PDF In a reform movement led by two emeritus professors from MIT, “system dynamics” exercises like this one are helping to turn K-12 classrooms around the United States into high-performance learning centers.
UQ
要给人家一个平台表现.
改了主题。
泛函分析心泛寒，实变函数学十遍，哈哈！ 随机过程考满分的飘过～～
谢谢粘贴。其中有一两本书不错。可以找来看看。
Spinger 是德国最大的出版社啊.
出版的书籍多的惊人啊, 而且都是精品啊!!
为啥中国没有这种出版社出版点好书呢/
施普林格科学+商业媒体（Springer Science+Business Media）或施普林格（Springer，宽式IPA：/ˈʃpʁɪŋɐ/），在柏林成立，是一个总部位于德国的世界性出版公司，它出版教科书、学术参考书以及同行评论性杂志，专注于科学、技术、数学以及医学领域。
在科学、技术与医学领域中，施普林格是最大的书籍出版者，以及第二大世界性杂志出版者（最大的是爱思唯尔）。
施普林格拥有超过60个出版社，每年出版1,900种杂志，5,500种新书，营业额为9.24亿欧元（2006年），雇有超过5,000名员工[1] 。施普林格在柏林、海德堡、多德雷赫特（位于荷兰）与纽约设有主办事处。
1842年，施普林格书店由朱利叶斯·施普林格（Julius Springer）于柏林创立，不久之后涉足出版。他的儿子费迪南德·施普林格（Ferdinand Springer）在30年内，将公司由4人的小规模，经营至全德国第二大出版商，并拥有65名员工[2][3]。1964年施普林格冲出德国，业务向国际发展，纷纷在纽约、东京、巴黎、米兰、香港、德里等地设立办公室。
中国和印度这么大的国家, 人口多的恐怖, 占据了世界上最好的光热条件, 但是在书籍出版上还不如一个小小的德国, 产生不了 Springer .
看看德国这个国家, 面积小的不能再小, 全年阴雨, 没有太阳, 没有光热条件, 却能产生 Springer 这么大的出版社, 每年出版发行这么多的数学, 物理, 化学, 医学书籍.
再看看中国的图书, 都什么东西啊!
你能不能不要神经病每天刷屏啊，你笑话中国印度，你咋不看看你自己每天发了这么多贴有啥有用的吗
呀 还好我不是学数学的