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Computers and Technology, 03.08.2021 08:20 o10922025
Trong chương trình bảng tính Excel, nhóm lệnh Labels trên dải lệnh ngữ cảnh Layout cho phép xác định các thông tin nào sau đây cho biểu đồ?
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A. Tiêu đề biểu đồ
B. Tiêu đề các trục
C. Chú giải
D. Dạng biểu đồ
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Computers and Technology, 21.06.2019 22:00
Your task this week is to write a very simple spam classifier in python. it will classify messages as either spam (unwanted) or ham (wanted). the program will have a set of spam_words, words that are known to appear in spam messages. that set is included in the template file spam.pypreview the document. you will also define a spam threshold which reflects the allowed percentage of spam words in the message. you'll compute a 'spam indicator', which is the ratio of spam words to the total number of unique words in the message. if the spam indicator exceeds the spam threshold, the message is classified as spam. otherwise it is classified as ham. we'll assume that the spam threshold is a constant and has a value of 0.10. your program will prompt the user for a message and then will print the corresponding spam indicator with two decimal digits and the corresponding classification (spam or ham). the program will be case insensitive. the spam words are detected whether they are in lower case or upper case or mixed case. each word, spam or not, is counted once (even if it appears multiple times in the message.) the program will remove punctuation from the message before identifying the words and computing the spam indicator. for example '! ' must be identified as the spam word 'now'.
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Computers and Technology, 23.06.2019 01:20
Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;
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While preforming before operation pmcs, you notice the front right tire appears slightly under-inflated. what is the proper action?
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Trong chương trình bảng tính Excel, nhóm lệnh Labels trên dải lệnh ngữ cảnh Layout cho phép xác định...
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