python numpy interview questions

of the first pit (here only provides ideas, not specifically introduced) This problem may occur because your OS is 64bit, but the installed package has been looking for Python in the 32bit registry Stackoverfolow the answer seems to be solved, such as: http://stackoverflow.com/questions/3652625/ Installing-setuptools-on-64-bit-windows, I'm not going to go into this. 2. Settlement of the s

of the first pit (here only provides ideas, not specifically introduced) This problem may occur because your OS is 64bit, but the installed package has been looking for Python in the 32bit registry Stackoverfolow the answer seems to be solved, such as: http://stackoverflow.com/questions/3652625/ Installing-setuptools-on-64-bit-windows, I'm not going to go into this. 2. Settlement of the s

review. For example, add some related questions and so on.What is NumPyNumPy is a very important Python numerical computing extension Library, and the basic Python big data ecosystem relies on it, and because of the C-language library, it is very fast. Can say that we want to learn Python big data, must learn is the

): represents the projection on the second axis (row) direction of the Matrix, that is, the mean value of each column;View this URL: http://www.cnblogs.com/silence-tommy/p/6554986.htmlThere are questions on this website:Tf.reduce_mean (x) ==> 2.5 #如果不指定第二个参数, then the average of all the elementsTf.reduce_mean (x, 0) ==> [2., 3.] #指定第二个参数为0, the elements of the first dimension are averaged, that is, each column averagesTf.reduce_mean (x, 1) ==> [1.5, 3

Details about how to create an equals series in linspace In the python numpy function, numpylinspace Preface This article describes how to create an equal-difference series in linspace. I will share the content for your reference and study. I will not talk about it here. Let's take a look at the details. Numpy. linspace is used to create a one-dimensional array c

The Comparison Between Python list and NumPy. ndarry slice is described in detail, Differences between Python list and NumPy. ndarry slices Instance code: # List slices return non-original data. Modifications to new data will not affect the original data In [45]: list1 = [1, 2, 3, 4, 5] In [46]: list2 = list1 [: 3]

Python interview 2, python interviewSelf-Introduction This is the first question to be asked. However, some friends may not care too much. In fact, this issue has already determined your intention to stay in the interviewer's mind. The main structure of self-introduction: basic personal information + basic technical components + project experience (specific proje

We have selected 70 shell foot questions and answers you may encounter for your interview. Knowing a script or at least knowing the basics is critical to your system administrator, and it helps you automate many tasks in your work environment. Over the past few years, we have noticed that all Linux jobs require scripting skills.1) How do I pass parameters to a script?./script argumentExample : Show file nam

Summary and summary of questions asked during the Meituan interview The interview of Meituan has been completed for nearly half a month, and the three rounds of interviews have also passed about 10 days (people in Guangzhou are all on the phone). The results are still good, we successfully obtained the summer internship from Meituan. I didn't plan to write an

...] SISMEMBER key member Set Operations include: Cross sinter, sum sunion, and difference sdiff: SINTER key [key ...] SUNION key [key ...] SDIFF key [key ...] Sorted set Sorted set is similar to set, but each element in sorted set has a score, which can be used for sorting and ranking. Basic operations include zadd, zcount, and zrank: ZADD key score member [score member ...] ZCOUNT key min max ZRANK key member Summary The above is a classic python

. After creating an array or an object in the heap, you can also define a special variable in the stack that is equal to the first address of the array or object in the heap memory, and this variable in the stack becomes the reference variable of the array or object. The reference variable in the stack can then be used in the program to access an array or an object in the heap, which is equivalent to a name that is an array or an object.2 0. Can i cast int to a variable of type byte?What happens

: This article mainly introduces the Programmer Interview: the top 42 questions and answers in the telephone interview (I). If you are interested in the PHP Tutorial, please refer to it. This year is July 2015. in the past few years, electronic Interview (Telephone interview

tutorial, some of the questions will even involve a number of programming areas. This is an amulet for your future interview.1. What is Python programming? He will encourage you to make comparisons with other languages.Answer: Python is interpreted as an object-oriented language. Unlike other packaged languag

Series of articles: 11 basic Linux interview questions Basic questions about Linux interview-Part 1 Basic questions about Linux interview-Part 1Q.1: What is the core of the Linux operating system? Shell Kernel Command Script

Source: Old Money high-availability architectureGuidance: Redis-related knowledge is a frequently asked topic during a programmer's interview. As a veteran technical interviewer who has hit hundreds of thousands of people in the Internet technology industry, the author summarizes the frequently asked questions in the interview process. is well worth reading. Auth

between $* and [email protected] $*– output all parameters passed to the script as a string [Email protected]– to list all parameters passed to the script in $IFS delimiter 63) How do I define an array in bash?array= ("Hi" "My" "Name" "is")64) How do I print the first element of an array?Echo ${array[0]}65) How do I print all the elements of an array?Echo ${array[@]}66) How do I output all the array indexes?Echo ${!array[@]}67) How do I move an element with an index of 2 in th

using parallelism in Core Data is that each NSManagedObjectContext must be accessed only from the process in which it was created . What is the difference between POST and GET for HTTP?The request for a get type is idempotent according to the HTTP protocol, while the POST request has side effects, that is, get is used to get some resources, and post is used to change some resources, which may create new resources or update existing resources.A POST request is more secure than a GET reques

This article will bring about 11 basic Linux interview questions, hoping to help friends who are about to change jobs or looking for relevant work. Q.1: What is the core of the Linux operating system? Shell Kernel Command Script Terminal A: Kernel is the core of the Linux operating system. Shell is a Command line interpreter, Command) is a computer-specific Command, Script is a collection of com

reference from the asyncio module, and then throw the coroutine to be executed into eventloop for execution, so that asynchronous Io is realized. 33. Briefly describe the functions and application scenarios of the gevent module.When a greenlet encounters an I/O operation, such as accessing the network, it will automatically switch to another greenlet. After the I/O operation is completed, it will switch back to continue execution when appropriate. Since Io operations are very time-consuming, th

Share several questions about python and several questions about python. This article mainly introduces several python interview questions recently encountered during the