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Naddika [18.5K]
3 years ago
15

4) Which is a more efficient way to determine the optimal number of multiplications in a matrix-chain multiplication problem: en

umerating all the ways of parenthesizing the product and computing the number of multiplications for each, or running RECURSIVE-MATRIX-CHAIN? Justify your answer

Computers and Technology
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

Running RECURSIVE-MATRIX-CHAIN is asymptotically more efficient than enumerating all the ways of parenthesizing the product and computing the number of multiplications of each.

the running time complexity of enumerating all the ways of parenthesizing the product is n*P(n) while in case of RECURSIVE-MATRIX-CHAIN, all the internal nodes are run on all the internal nodes of the tree and it will also create overhead.

Explanation:

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Importance of software in computer
Juli2301 [7.4K]

Answer:

Computer hardware is virtually useless without computer software. Software is the programs that are needed to accomplish the input, processing, output, storage, and control activities of information systems.

Explanation:

4 0
3 years ago
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Write a query that returns the Genres that I have purchased the most tracks of. I only care about genres that I've purchased at
Murljashka [212]

Answer:

<em>SQL Query</em>

///////////////////////////////////////////////////////////////////////////////////////////////////

select Genre_Name, Number_Purchased from Genre

INNER JOIN Tracks on Genre.Genre_Name = Tracks.Genre_Name

WHERE Number_Purchased >= 10 AND Tracks.price >= 1

ORDER BY Number_Purchased ASC;

Explanation:

First off, I selected the required columns from <em>Genre</em> Table.

Then I inner joined <em>Genre</em> table with <em>Tracks</em> table, to get the <em>price</em> of tracks of the corresponding Genres.

Then the required Where conditions are written, which includes one from the <em>Tracks</em> table.

Finally, the Order by statement is written by <em>Number_Purchased</em> column in ascending (ASC) order.

6 0
3 years ago
Identify the following keys. write AK for Alphanumeric keypad,NK for Numeric Keypad,CK for Cursor Key, FK for Function keys and
natali 33 [55]

Answer:need points for stuff

Explanation:

4 0
2 years ago
Which is a subclass indicating the extent of physiological decompensation or organ system loss of function that was added to eac
stepladder [879]

The subclass indicating the extent of physiological decompensation is known to be the severity of illness.

<h3>What is psychological decompensation?</h3>

“Decompensation” is known to be a term that is often used in mental health professionals to tell about an episodes where a person's existing mental-health or psychiatric disorder is going down.

Note that The subclass indicating the extent of physiological decompensation is known to be the severity of illness.

Learn more about  physiological decompensation  from

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5 0
2 years ago
Match the tool to the task it helps to accomplish.
olga2289 [7]

Answer:

Translate ➡️ allows the user to change words from one language to another

Smart Lookup➡️allows user to find the definition of a word or a phrase.

Thesaurus ➡️ allows the user to find the synonyms and antonyms of a word.

Explanation:

I have been able to match each took to the tasks that they perform.

In Translate, users can easily change words into a different language. That means that words in English can be translated into French, Spanish, etc., and vice versa.

In Smart Lookup, users can actually find definitions of words or phrases. Smart Lookup can be found in Microsoft Word Office.

The Thesaurus is used to find the synonyms and antonyms of words.

These tools make learning very easy and enjoyable.

8 0
3 years ago
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