Engineering

Engineering, 19.11.2019 07:31, jerrysandoval22

Optimization versus search. recall the traveling salesman problem: tsp input: a matrix of distances; a budget b output: a tour which passes through all the cities and has length ≤ b, if such a tour exists. the optimization version of this problem asks directly for the shortest tour. tsp-opt input: a matrix of distances output: the shortest tour which passes through all the cities. show that if tsp can be solved in polynomial time, then so can tsp-opt

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Chemistry, 25.06.2019 07:40, onlymyworld27

Suppose you are designing a search aggregator, which for a given query fetches search results from two different search engines and presents an intersection of the two search results. here is a simplified version of this problem: given two sorted integer arrays of lengths m and n, return a new array with elements that are present in both input arrays. the input array may contain duplicates, but there should be no duplicates in the output array. for example, if the input arrays are [17, 23, 23, 35, 43, 47, 69, 78, 80, 84, 84, 86] and [23, 35, 50], the output array should be [23, 35]. (i) describe a brute force solution. what is the worst-case tight big-o time complexity of this brute solution?

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Computers and Technology, 18.09.2019 19:00, leledaisy1994

Recall that if a is an m × n matrix and b is a p × q matrix, then the product c = ab is defined if and only if n = p, in which case c is an m × q matrix. (a) write a function m-file that takes as input two matrices a and b, and as output produces the product by columns of the two matrix. for instance, if a is 3 × 4 and b is 4 × 5, the product is given by the matrix c = [a*b(: ,1), a*b(: ,2), a*b(: ,3), a*b(: ,4), a*b(: ,5)] this content is protected and may not be shared, uploaded, sold or distributed 2019 v3 copyright@ school of mathematical and statistical sciences, arizona state university 8 the function file should work for any dimension of a and b and it should perform a check to see if the dimensions match (hint: use a for loop to define each column of c). call the file columnproduct.m. test your function on a random 3×2 matrix a and a random 2×5 matrix b . compare the output with a*b. repeat with 5 × 3 and 3 × 4 matrices and with 5 × 3 and 4 × 3 matrices. use the command rand to generate the random matrices for testing. include in your lab report the function m-file and the output obtained by running it

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Computers and Technology, 19.10.2019 15:30, kellylopez7829

Write a function called diamat that receives a matrix of numbers as input and returns true if the numbers grow in value from left to right and from top to bottom within the matrix, and returns false otherwise. for example, if the input matrix is: 3 8 11 6 17 22 14 21 24 29 30 74 then, the output should be true (logical 1), because i.e., the numbers in the matrix increase from left to right within each row, and from top to bottom within each column. on the other hand, if the input matrix is: 3 8 11 6 7 22 14 21 24 29 30 74 then, the output should be false (logical 0), because 8 > 7. similarly, if the input matrix is: 3 8 11 6 17 22 14 28 24 29 30 74 then, the output should be false (logical 0), because 28 > 24.

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