coursera refund

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360 How to apply for refund of VIP member of cloud disk

360 How to apply for refund of VIP member of cloud disk 360 How to apply for refund of VIP member of cloud disk Users who are still in the membership period after October 20, 2016 will receive a full refund: The purchase of users within the last 3 months, will be automatically returned through the original purchase channel; More than 3 months to purc

[Coursera] Getting and cleaning Data Quiz

of:sum(dat$Zip*dat$Ext,na.rm=T)(Original data Source:http://catalog.data.gov/dataset/natural-gas-acquisition-program)Question 4Read the XML data on Baltimore restaurants from here:Https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Frestaurants.xmlHow many restaurants has zipcode 21231?Question 5The American Community Survey distributes downloadable data about the states communities. Download The 2006 microdata survey about housing for the state of Idaho using Download.file () from here:Https

Refund for WeChat payment

Refund for payment. What is the return code below? Certificate path correct certificate readable solution {code...} refund payment problem, The return code is as follows: What is this? The certificate path is correct. Certificate readable Solution Array (2) {["return_code"] => string (4) "FAIL" ["return_msg"] => string (21) "certificate not match" | Reply content:

How do I apply for a refund at Apple App Store?

1 The APP store refund cannot be done directly on the phone, and we have to use the computer and itunes to operate on the computer. 2 we have to make sure that the computer can surf the internet and then open itunes--on the computer. itunes Store Now we click on the Apple ID in itunes and then click on "Account" as shown in the picture. 3 then in my previous purchase of items we can click on the "shopping record" on the right side of "show all"

System. Security. Cryptography. CryptographicException occurs when you call the WeChat refund interface or the red packet sending interface: an internal error occurs. Solution for the internal version 7601

System. Security. Cryptography. CryptographicException occurs when the refund interface or the red packet sending interface is called: an internal error occurs. Solution: internal version 7601 I have summarized three reasons why the certificate cannot be loaded: 1. The certificate password is incorrect. The certificate password is the merchant ID. Solution: Check whether the certificate password is consistent with the merchant ID. 2. the IIS setti

WeChat Payment (refund result notification) Golang AES-256-ECB decryption

This is a creation in Article, where the information may have evolved or changed. AES-256-ECB decryption of the returned data is required to process the notification of the payment of the refund result, and the Golang standard library does not support AES ECB plus decryption, which is hereby recorded. First, the way of decryption The decryption steps are as follows Encrypt string A To do base64 decoding, get encrypted string b Do MD5 to merch

Day Cat App Speed refund Operation tutorial

To the Cat software users to detailed analysis to share the speed refund of the operation of the course. Tutorial Sharing: Enjoy the speed of return service consumers in the application for return, but also online application "door-to-door withdrawal" service. As long as the application time between 9 o'clock to 20 o'clock in the evening, the system will automatically notify The courier, within 2 hours someone will be door-to-door. The servic

Coursera Special Course--Introduction to program design and algorithm

1. What is a special course (specializations)?If you want to learn a major that you do not understand, you can study according to the special course arrangement. Coursera Special Course collects a field of curriculum, and according to the Order of teaching, it is very suitable for the new people who don't feel well.2. Program Design and algorithmThis special course is a computer Foundation course published by Peking University in

Coursera Series-R programming third week-lexical scopes

(Datasets) data (IRIS)#Exploratory Analysisnames (Iris) head (IRIS)#The following attempts to take Virginica,speal. The method of length is all wrongiris[,2]iris[iris$species=="virginica", 2]mean (iris[iris$species=="virginica", 2])##the above is Error,not correct##tapply (Test$sepal.length,test$species,mean)#using Species.mean to group vectors, this method is feasible, but the above method is necessary to look at the errorLibrary (Datasets) data (Mtcars) #以下为做某个题时的若干测试. And a trial-and-error l

Coursera open course notes: "Advice for applying machine learning", 10 class of machine learning at Stanford University )"

networks and overfitting: The following is a "small" Neural Network (which has few parameters and is easy to be unfitted ): It has a low computing cost. The following is a "big" Neural Network (which has many parameters and is easy to overfit ): It has a high computing cost. For the problem of Neural Network overfitting, it can be solved through the regularization (λ) method. References: Machine Learning video can be viewed or downloaded on Coursera

NTU-Coursera ml: HomeWork 1 Q15-20

NTU-Coursera ml: HomeWork 1 Q15-20Question15 The training data format is as follows: The input has four dimensions, and the output is {-1, + 1 }. There are a total of 400 data records. The question requires that the weight vector element be initialized to 0, and then "Naive Cycle" is used to traverse the training set. When the iteration is stopped, the weight vector is updated several times. The so-called "Naive Cycle" means that after an error i

coursera-Wunda-Machine learning-(programming exercise 7) K mean and PCA (corresponds to the 8th week course)

This series is a personal learning note for Andrew Ng Machine Learning course for Coursera website (for reference only)Course URL: https://www.coursera.org/learn/machine-learning Exercise 7--k-means and PCA Download coursera-Wunda-Machine learning-all programming practice answers In this exercise, you will implement the K-means clustering algorithm and apply it to compressed images. In the second section, y

360 how do I apply for a refund if a 360 cloud disk member is disabled?

360 cloud disk disabledFor more information, see the section "is 360 cloud disk closed true?". For the reason, 360 Cloud Disk said, some criminals use 360 cloud disk storage to spread illegal files, infringe and pirated profits, spread obscene pornographic information and other illegal and criminal acts have occurred repeatedly, seriously infringing the legitimate rights and interests of genuine enterprises, it brings great harm to society. Enterprises face huge security risks.Therefor

Error in Curl during refund on WeChat, error code: 58

A Curl error occurred during refund. Error Code: 58 I used the demo on the official website for testing. The two pem certificate addresses are also correct. they use the URL and absolute path. Reply to discussion (solution) Curl error, error code: 58Error cause queryBusiness results:Error code:Error Code description:Public Account ID:Merchant ID:Sub-merchant ID:Device No:Signature:Order No:Merchant order number:Merchant

Silver Networking off Payment, refund Java implementation

It lasted two weeks and finally paid the refund for the UnionPay. Because no one to guide, went a lot of detours, bloggers here posted the relevant code, hoping to help like me, no one to guide the small partners. Pay for UnionPay 1: Payment, refund process. 2: Pay the relevant preparation to the official website to download the SDK, the official website related address will be at the end of this artic

Mobile Taobao application refund return process

1, in the mobile phone into the mobile Taobao and then click on "My Taobao" if you do not login to use your Taobao login can. 2, good after we enter the phone Taobao account, in my Taobao interface, in order to ship and receive goods under the products you have already purchased. The following figure: 3, because I was someone sent the shoes, so want to return, and the seller shows that has been shipped, so I am under the receipt of goods, find the shoes I bought. If your seller has not s

Operating system Learning notes----process/threading Model----Coursera Course notes

Operating system Learning notes----process/threading Model----Coursera Course note process/threading model 0. Overview 0.1 Process ModelMulti-Channel program designConcept of process, Process control blockProcess status and transitions, process queuesProcess Control----process creation, revocation, blocking, wake-up 、...0.2 threading ModelWhy threading is introducedThe composition of the threadImplementation of threading mechanismUser-level threads, c

Neural network and deep learning programming exercises (Coursera Wunda) (3)

full implementation of multi-layered neural network recognition picture of the cat Original Coursera Course homepage, in the NetEase cloud classroom also has the curriculum resources but no programming practice. This program uses the functions completed in the last job, fully implementing a multilayer neural network, and training to identify whether there is a cat in the picture. There is no comment in the Code and Training test data download Cod

How to download Coursera videos

In China, Coursera is very choppy and often gets stuck when playing half of the video. I don't know why. Therefore, you can only download the file and view it again. There is a script on GitHub to open the link to download the entire course. It is very convenient to use. The method is as follows. Because this script uses multiple Python libraries, it is best to use the Linux system. I use Debian Wheezy and python2.7.3. Of course, you need a

Start Coursera and EDX step by step

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

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