Matrix with List<>
Hello everyone!!!
Have you ever deal with matrix in you coding? If
yes, how did you represent a matrix? Most probably you answer will 2D array. 2
D array is the most common matrix representation that all most all the coders
using. But I have tried out different way and its successes. I used list to represent matrix. I believe we can easily have
matrices graphical representation using this method.
You can consider single element as an integer
variable.
By adding this kind of set of integer variable you
can create an integer list. It is a matrix row.
By adding set of rows you can create a matrix.
I used this method to add a matrix addition question
with two matrix with one answer and three wrong answers.
public class Row
{
public List<int> cell = new List<int>();
public void addCell(int element)
{
cell.Add(element);//add a single element
}
}
public class Matrices
{
public List<Row> matrix = new List<Row>();
//add a row
public void addMatrix(Row matrixRow)
{
matrix.Add(matrixRow);
}
}
Add following matrix in to lists using above classes
int A[,]=new int[4,2];
A[,]={{1,2,3,4},{5,6,7,8}};
int row=2;
int col=4;
Matrices mA = new Matrices ();
//adding values for matrix
for (int
i = 0; i < row; i++)
{
Row rowA = new
Row();
for (int
j = 0; j < col; j++)
{
rowA.addCell(A[i, j]);
}
mA.addMatrix(rowA);
}
Retrieve matrix elements
List<int> elemntList= new List<int>();
foreach (Row r1 in rowA)
{
elemntList = r1.cell;
foreach
(int element in elemntList)
{
Console.Write(element);
}
Console.WriteLine();
}
Hope this post will help to you.
Don’t
forget to leave a comment. Your suggestions are highly welcome.
Cheers!!!
