An Elementary Introduction to the Wolfram Language Exercises中无法通过测试的题目

此书在线版地址：http://www.wolfram.com/language/elementary-introduction/

即使复制标准答案也无法得到correct

10.4 Make an image collage of an image together with the results of blurring, edge detecting and binarizing it.

11.13 Count the number of words in WordList[ ] that start with “q”.

11.14 Make a line plot of the lengths of the first 1000 words from WordList[].

11.16 Use StringReverse to make a word cloud of the last letters in the words from WordList[].

28.4 Find words in WordList[ ] that both begin and end with the letter “p”.

28.12 Find words in WordList[ ] whose first 3 letters are the same as their last 3 read backward, but where the whole string is not a palindrome.

28.13 Find all 10-letter words in WordList[ ] for which the total of LetterNumber values is 100.

30.10 Sort the first 50 words in WordList[ ] by their last letters.

30.13 Get a random sample of 20 words from WordList[ ], and gather them into sublists by length.

+30.6Make a line plot of integers up to 200 sorted by the lengths of their names in English.（答案可以通过，不过感觉答案是错的，答案是直接用name排序，并没有调用length）

+30.7Get a random sample of 25 words from WordList[].

+30.13Generate 1000 random sequences of 4 letters, and make a list of ones that appear in WordList[ ].

34.3Make a labeled bar chart of the number of times each possible first letter occurs in words from WordList[ ].

34.4Make an association giving the 5 most common first letters of words in WordList[ ] and their counts.

36.9Deploy a form page that takes a location and a number n and repeatedly gives a map of the n nearest volcanoes to the location.

45.5Make a dataset of masses of planets, where the planets are sorted by the largest mass of their moons.复制答案可以通过，不过 答案中是按total排序，而题目是按最大的moon排序

做到最后几章时，我才发现，有时一道题怎么check都不对，这是关掉笔记本重新打开可能会check正确。

所以上面这些也有可能我再试一遍可以通过。不过懒得再试一遍了。

然后，可能会感兴趣的是：

http://challenges.wolfram.com/