Question: *********%Define the 3x3 matrix A with all 1's in the first row, all 2's in the second row, %and all 3's in the 3rd row. A = [1 1 1; 2 2 2; 3 3 3]--CORRECT %Use the size() function to compute the number of rows and columns of matrix A. %Store these quantities as variables numRows and numCols. ? %Use the eye() function to create the 4x4 identity matrix. Store this matrix as I. ? %Compute the transpose of the matrix A. Store this transposed matrix as the matrix D. ?
Question: *********%Define the 3x3 matrix A with all 1's in the first row, all 2's in the second row, %and all 3's in the 3rd row. A = [1 1 1; 2 2 2; 3 3 3]--CORRECT %Use the size() function to compute the number of rows and columns of matrix A. %Store these quantities as variables numRows and numCols. ? %Use the eye() function to create the 4x4 identity matrix. Store this matrix as I. ? %Compute the transpose of the matrix A. Store this transposed matrix as the matrix D. ?
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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Question
%In this activity you will learn how to define matrices, use the size() command to find the size
%of a matrix, generate an identity matrix, and also compute the transpose of a matrix using
%the " .' " operator.
%Matrices in Matlab can be constructed by entering each row of values.
%Rows are separated from each other using a semicolon.
%For example, consider the 2x4 matrix B defined as:
B = [1 2 3 4; 5 6 7 8]
%The size() function can be used to compute the number of rows and columns of a matrix.
%Compute the number of rows and columns of B by using the size() function and store these values.
[numRowsTest,numColsTest] = size(B)
%The eye() function can be used to create an n by n identity matrix.
%Create the 3x3 identity matrix and store it as I.
I = eye(3)
%The "dot-tic" operator can be used to transpose a matrix.
%Take the transpose of the matrix B and store it as the matrix C.
C = B.'
-------------------------------------------------------------------------------
Question:
*********%Define the 3x3 matrix A with all 1's in the first row, all 2's in the second row,
%and all 3's in the 3rd row.
A = [1 1 1; 2 2 2; 3 3 3]--CORRECT
%Use the size() function to compute the number of rows and columns of matrix A.
%Store these quantities as variables numRows and numCols.
?%Use the eye() function to create the 4x4 identity matrix. Store this matrix as I.
?%Compute the transpose of the matrix A. Store this transposed matrix as the matrix D.
?
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