Create the following matrix M:M =11319253152127511172329By writing one command and using the colon to address range of elements(do not type individual elements explicitly), use the matrix M to:(a) Create a five-element row vector named Va that contains the elementsof the third row of M.(b) Create a three-element column vector named Vb that contains the ele-ments of the fourth column of M.(c) Create an eight-element row vector named Vc that contains the ele-ments of the second row of M followed by the elements of the third col-umn of M.

M = 1 7 13 19 25 3 9 15 21 27 11 17 23 29 By writing one command and using the colon to address range of eler (do not type individual elements explicitly), use the matrix M to: (a) Create a five-element row vector named Va that contains the eler of the third row of M. (b) Create a three-element column vector named Vb that contains th ments of the fourth column of M. (c) Create an eight-element row vector named Vc that contains th

M = 1 7 13 19 25 3 9 15 21 27 11 17 23 29 By writing one command and using the colon to address range of eler (do not type individual elements explicitly), use the matrix M to: (a) Create a five-element row vector named Va that contains the eler of the third row of M. (b) Create a three-element column vector named Vb that contains th ments of the fourth column of M. (c) Create an eight-element row vector named Vc that contains th

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q2/ Create the following matrix M (6x5) (do not type individual elements explicitly): 0.25 0.5 0.75 1 1.25 -10 10 20 30 3 1 -1 -3 1 8. 27 64 125 3 9. 12 15 8 6 4 2 Use the matrix M to: (do not type individual elements explicitly) (a) Create a 12-elements row vector named A that contains the first row of M followed by the middle two elements of the third column of M followed by the last row of M. (b) Swap the second column with the fourth column of M. (c) Add the last six digits of your phone number to M as the sixth column then delete the middle two columns.
You need to generate a (5x12) rain matrix (Rain[5][12]) that contains the average rainfall over 12 months for a 5 year period. You program should do the following steps: Create a 5x12 integer rainfall matrix Create a 5 element array of int pointers(int * Rain[5]) and assign each pointer to the address of the first element of each row Populate the elements of the matrix with pseudo-random numbers having a range from 0-100 Use the rand( ) function to generate your temperatures. The output of rand() should be mod with 100 (rand()%100) in order to get reasonable rainfall values. Init the random number generator with long seed = srand(67) This task should be performed by a function, void RainGen(int* Rain[ ], int R, int C), that populates all the matrix entries. After generating all rainfall matrix entries, print the entire matrix using the function, void Print(int* Rain[ ], int R, int C); Calculate the total monthly Rainfall per year for the entire five years. Use the following…
Create a function called mergeAndSeparate which performs the following tasks: Accepts two numpy arrays, aLeft and aRight Creates and returns three numpy arrays, left, right, and both both contains the elements in the arrays which match on value and position If aLeft = [1 2 4 4] and aRight = [1 6 5 4] then both should contain [1 4] (the first and last elements) left contains all of the elements in aLeft not matched in aRight In our previous example, left should contain [2 4], the middle two elements right contains all of the elements in aRight not matched in aLeft In our previous example, right should contain [6 5], the middle two elements Your code should use only numpy operations No loops. No if statements The function should not print anything You may assume that the input arrays are 1-dimensional and that they are the same length, but you do not know in advance how long they will be You may assume numpy has already been imported Hints: My solution is 5 lines long,…
Select all code lines that creates a vector with content {10, 10, 10, 10). You are also given the C-type array, an_array with content (10, 10, 10, 10). std::vector a_vector (an_array, an_array + sizeof(an_array)/sizeof(int)); std::vector a_vector [10, 10, 10, 10); std::vector a_vector (10, 4); std::vector a_vector = {10, 10, 10, 10); Ostd::vector a_vector (4, 10);
MATLAB: Create a vector named n which starts at -10 and steps by 1 to end at +10 by using the start:step:stop syntax. Next, generate a vector x1 so that x1 satisfies the mathematical relationship ?ଵ[?]=(0.60). Since n is a vector, one will need to utilize 0.60.^n (i.e., .^ is used in place of ^) to define x1. Redo the work just completed, but for a vector x2 where x2 satisfies the mathematical relationship ?ଶ[?]=(0.85). Repeat the work just completed, but for a vector x3 where x3 satisfies the mathematical relationship ?ଷ[?]=(1.10). In one figure window, plot x1 as a function of n using the stem command. The stem plot must show BLACK (versus the default blue) lines that have filled circles and a line width of 2; refer to the lecture example script file. Further, the horizontal axis label (xlabel) must be n, the title (title) must include your name and the vertical axis label (ylabel) must show ?ଵ[?]=(0.60)(note the subscript and superscript). In addition, turn on the grid (doc grid),…
Vector Creation (creating equally spaced vectors) Write a script with commands to create the following vectors and assign to the indicated variable names. ■ Create an evenly-spaced row vector A with elements starting at 0 and ending at 50 with increments of 0.5. ▪ Create a row vector B with 80 evenly-spaced elements starting at 0 and ending at л/2. Your code should not include the following MATLAB functions or keywords: for, while. Hint: one line of your solution should start with A = and the other line of your solution should start with B =
Create a for-loop structure that will display each index and the element stored (of the corresponding index) in the array named Array. In the display, separate the index and the corresponding element value by a colon ( : ). Each entry should be displayed on a separate line.
1) Define a global variable Emps that is an array of pointers to employee structs. 2) Change your createEmployee function to add the new employee to the Emps array. It should place it in the first slot that contains a NULL. 3) Write a listEmployees function that will call your display function on each employee in the array. 4) Change main to have a loop that looks for user commands. • If the user types HIRE, you should call createEmployee. If the user types LIST, you should call listEmployees. • If the user types QUIT, you should exit the loop, which will then cause the program to exit. 5) Write a findEmployee function that takes a string parameter and returns the employee pointer with that name or NULL if no such person exists. Change main to add a FIND name command that will find and display a single employee.
Part B - reading CSV files You will need a Python repl to solve part B. Define a Python function named cheapest_rent_per_state that has one parameter. The parameter is a string representing the name of a CSV file. The CSV file will be portion of a dataset published by the US government showing the median (middle) rent in every county in the US. Each row in the CSV file has the same format Area Name, Efficiency, 1-Bedroom, 2-Bedroom, 3-Bedroom, 4-Bedroom, State Code The data in the Area Name and State Code columns are text. The data in all of the other columns are decimal numbers. Your function will need to use the accumulator pattern to return a dictionary. The keys of that dictionary will be the state codes read in from the file (state codes are at index 6). For each key in the dictionary, it's value should be the smallest median rent for an efficiency in that state (median rents for an efficiency are at index 1). Important Hints: * You will really, really want to use the built-in csv…
1. use colon operator to create 50 elements vector between -1 & 6 with constant spacing between elements. For the vector created in, square all elements.
Game of Hunt in C++ language Create the 'Game of Hunt'. The computer ‘hides’ the treasure at a random location in a 10x10 matrix. The user guesses the location by entering a row and column values. The game ends when the user locates the treasure or the treasure value is less than or equal to zero. Guesses in the wrong location will provide clues such as a compass direction or number of squares horizontally or vertically to the treasure. Using the random number generator, display one of the following in the board where the player made their guess: U# Treasure is up ‘#’ on the vertical axis (where # represents an integer number). D# Treasure is down ‘#’ on the vertical axis (where # represents an integer number) || Treasure is in this row, not up or down from the guess location. -> Treasure is to the right. <- Treasure is to the left. -- Treasure is in the same column, not left or right. +$ Adds $50 to treasure and no $50 turn loss. -$ Subtracts…
In PYTHON  Write a function that prints multiple times a vector from its first element up to the next occurrence of an element having value equal to a provide number  Each print stops at the i-th occurrence of the provided number  Use while loop(s)  Function Name:vec_multi_print_to_number  Parameters:a_vector,a_value Return:none  Example: Input:my_vector=[5,6,7,8,9,5,6,7,8,9] Invokefunction:print_up_to_value(my_vector,7)  Output:[5,6,7,8,9,5,6,7]