) BreakK+=1Return 1/totalPrint (Estimatepi ())Two methods for traversing stringsFind usage#-*-Coding: UTF-8-*-word=' banana 'Print (Word.find ('na')) #2 look for the subscript when a string is encountered for the first timePrint (Word.find ('na', 3)) #4 indicates which subscript to start looking forPrint (Word.find (' A ', 0, 1)) #-1 indicates from which small label to start finding which of the following table endsFind a word with three repeating letters#-*-Coding:utf-8-*-def Liayiyang(word):Co
http://eagain.net/articles/git-for-computer-scientists/Git object storage is just a DAG of objects, with several types of objects. They are all compressed and marked with SHA-1 hash.Blob: The simplest object is just a heap of bytes. Often it is a file, but it can also be a symbolic link or anything else. The object that points to the BLOB to specify the specific semantics of the BLOB.Tree: The directory is
Scientists at Tel Aviv University in Israel recently launched a computer program to make people look more beautiful by adjusting the geometric structure of facial features, at the same time, we can keep people's looks unchanged to the maximum extent.
This program is not a commonly used digital modifier in the photo studio. It does not make people look more beautiful by changing the hair color, wrinkle re
Harvard Business comments, an authoritative sexual affairs authority, announced that "data scientists" are the sexiest profession in the 21st century. The so-called sexiness not only represents the temptation to be difficult to name, but also shows that everyone does not know what it is.
No matter what the boss does not understand what data scientists do, the demand for this position has rapidly increased i
Software development skills for data scientistsData scientists often come from diverse backgrounds and frequently don ' t has much, if any, in the-the-of-the-the-the-formal training In computer or software development. That's being said, most data scientists at some point would find themselves in discussions with software engineers because of Some code that alrea
Prologue: real scientists don't study the mind
The psychologist's fear of the Party Just like any other tribe, scientists have a hierarchy. psychologists are Somewhere near the bottom. I discovered this in my first year at university, Where I was studying natural sciences. it was announced that, for the first time, students wocould be able to study psychology in Part 1 of the Natural Scie
Scientists use the EEG helmet for the first time to transmit information between two human brains 8046 kilometers away.
Brainwave sensor devices can "use the mind to control the role in helicopter and computer games. At present, this research has been further developed, A person in India can use only brainwaves to send a message to a colleague in France.
The researchers used EEG helmets to record the electr
The author Matthew May is a computer postgraduate in parallel machine learning algorithms, and Matthew is also a data mining learner, a data enthusiast, and a dedicated machine-learning scientist. Open source tools play an increasingly important role in data science workflows. GitHub Ten deep learning projects, which include a large number of code base, framework and learning materials. Look at what tools people on GitHub are using and what resources
A virtual electronic map of highways in Ohio uses colors to mark the risk factor of a crash. "Green indicates that the probability of a crash is very small. Yellow indicates that the probability of a crash is moderate. Red indicates that a collision of a vehicle is very likely to occur in this region during this time period ." Even high-tech devices such as satellites that monitor highway conditions in real time do not have the ability to predict the possibility of a traffic accident f
Label: style HTTP color ar Div SP art on C See; This is a genetic gun invented by scientists (Genegun. After nearly a hundred years of hard work, scientists have used lenqin Ray's diffraction images to establish a correct genetic concept, which has never been shaken. The diameter of gene molecules is only2Nano, which is 10 thousand times smaller than silk. How to Deal with them? It is indeed a big prob
Recently, the industry has proposed a new router algorithm, which is said to be very important in different types of large enterprise networks. This algorithm can automatically limit the number of network routes received by the router or update the link status to improve the efficiency of the router.
Previously, in the enterprise network, the oldest and slowest routers should wait for all other routers when receiving updates and recalculating their path tables. Professor Stephen Savage from the
Algorithms have become an important part of our daily lives, and they almost appear in any area of business. Gartner, the research firm, says the phenomenon is "algorithmic commerce", where algorithmic commerce is changing the way we operate and manage companies. Now you can buy these various algorithms for each business area on the "algorithmic market". The algorithmic market provides developers with more than 800 algorithms, including sound and visual processing, machine learning, and
According to foreign media reports, scientists from the southern Astronomical Observatory of Europe announced that they had discovered a special celestial system hidden in the seat of the snake, and its operating model was Maverick, it is hard to say whether it is a star or a planet.
Astronomers pointed out that this unprecedented celestial system is composed of two celestial bodies of only 1% mass of the sun. What puzzles astronomers is that there
British scientists find new therapies for new immunotherapy that mobilize patients ' immune system and white cells to eliminate mutated cancer cells and possibly eventually cure cancer
Source: Southern Metropolis Newspaper, March 05, 2016 edition: AA13 Author: he San he
An injection can cure cancer. British scientists announced March 4 that they have identified the "Achilles heel" of cancer cells (a metapho
8 Productivity Hacks for Data scientists Business analystsintroductionI was catching up with one of my friends from a past organization. She had always been interested in data science, but is only able to broke into it about months ago. She had joined an organization as a data scientist and is clearly learning a lot in her (relatively) new role. Over our conversation, she mentioned a fact/question, which have stuck with me since then. She said that i
Xinhuanet, Beijing, September December 19, 50 years ago, scientists successfully synthesized DNA (DNA) in a test tube for the first time. They combined various common chemical components, creates this most unique life molecule. American researchers are now preparing to bridge a huge obstacle: Completely using artificial DNA to create creatures.
The Washington Post website recently reported that scientists
supported by Enthought [5]. Python's support for array manipulation and drawing capabilities in class Matlab is the main reason why it is more favored than Perl and Ruby.Today, for data scientists, Python's most popular alternative is R, Matlab/octave, and Mathematica/sage. In addition to the previous work of porting the MATLAB features to Python, recent work has ported some of the popular features in R and Mathematica to Python.The data frames and r
Gene therapyChinese scientists successfully reverse the process of type 1 diabetes using gene therapyChinese researchers reported 4th that they have successfully reversed the disease process by using gene therapy to produce a large number of omega 3 fatty acids in the type 1 diabetic mice. This brings new hope to the cure for patients suffering from type 1 diabetes. The study, which was led by two professors from Guangdong University of Technology Zha
Emperor Joseph: there is no extra note.
Professional Ethics of scientists
This is the reason why I propose that we need a new professional ethics mainly, not all, for scientists. I suggest that it end my speech based on the twelve principles below.
Our objective speculative knowledge is more and more beyond anyone's grasp. Therefore, there is no "authority ". Also in specialized disciplines
It is impos
Don't blame the heavy rain and heavy rain for making solar panels unable to make full use of the power and collect enough power. Because scientists are currently studying the mechanism of generating electricity through raindrops, so that we can obtain electricity from nature whether it is sunny or rainy.
The piezoelectric material presented by a team led by Jean-Jacques chaillout, from the French Atomic Energy Commission, can sense the vibrations whe
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