Let M be a matrix whose entries are positive integers. What does the followingfunction do?function v=Summat (M)[m n]=size (M);v=zeros (m,1);for i-1:mfor j=1:nif mod (M(i,j),2)=30v(i)=v(i)+M(i,j);endendendCreates a vector whose ith entry is the sumof the odd elements of the ith column of MCreates a vector whose ith entry is the sumof the even elements of the ith row of MCreates a vector whose ith entry is the sumof the even elements of the ith column of MCreates a vector whose ith entry is the sumof the odd elements of the ith row of M

This question deals with the loops and vectors.

Let M be a matrix whose entries are positive integers. What does the following function do? function v=Summat (M) [m n]=size (M); v=zeros (m,1); for i-1:m for j-1:n if mod (M(i,j),2)==0 v(i)=v(i)+M(i,j); end end end

Let M be a matrix whose entries are positive integers. What does the following function do? function v=Summat (M) [m n]=size (M); v=zeros (m,1); for i-1:m for j-1:n if mod (M(i,j),2)==0 v(i)=v(i)+M(i,j); end end end

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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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

Let M be a matrix whose entries are positive integers. What does the following
function do?
function v=Summat (M)
[m n]=size (M);
v=zeros (m,1);
for i-1:m
for j=1:n
if mod (M(i,j),2)=30
v(i)=v(i)+M(i,j);
end
end
end
Creates a vector whose ith entry is the sum
of the odd elements of the ith column of M
Creates a vector whose ith entry is the sum
of the even elements of the ith row of M
Creates a vector whose ith entry is the sum
of the even elements of the ith column of M
Creates a vector whose ith entry is the sum
of the odd elements of the ith row of M

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