In this program, we will create a matrix using the 2D array. Then we read elements of the matrix from the user. After that, we will print the right diagonal matrix.
The source code to print the right diagonal matrix is given below. The given program is compiled and executed successfully
# Ruby program to print the
# right diagonal matrix
TwoDArr = Array.new(3){Array.new(3)}
printf "Enter elements of MATRIX:\n";
i = 0;
while (i < 3)
j = 0;
while (j < 3)
printf "ELEMENT [%d][%d]: ", i, j;
TwoDArr[i][j] = gets.chomp.to_i;
j = j + 1;
end
i = i + 1;
end
printf "MATRIX:\n";
i = 0;
while (i < 3)
j = 0;
while (j < 3)
print TwoDArr[i][j]," ";
j = j + 1;
end
i = i + 1;
print "\n";
end
printf("Right diagonal of matrix:\n")
i = 0;
while (i < 3)
j = 0;
while (j < 3)
if ((i + j) == 2)
printf "%d ", TwoDArr[i][j];
else
printf(" ");
end
j = j + 1;
end
i = i + 1;
print "\n";
end
Output:
Enter elements of MATRIX:
ELEMENT [0][0]: 1
ELEMENT [0][1]: 2
ELEMENT [0][2]: 3
ELEMENT [1][0]: 4
ELEMENT [1][1]: 5
ELEMENT [1][2]: 6
ELEMENT [2][0]: 7
ELEMENT [2][1]: 8
ELEMENT [2][2]: 9
MATRIX:
1 2 3
4 5 6
7 8 9
Right diagonal of matrix:
3
5
7
Explanation:
In the above program, we created a 3X3 matrix TwoDArr using the 2D array. Then we read the elements of the matrix. After that, we printed the right diagonal of the matrix.
Program/Source Code:
The source code to print the right diagonal matrix is given below. The given program is compiled and executed successfully
Output:
Explanation:
In the above program, we created a 3X3 matrix TwoDArr using the 2D array. Then we read the elements of the matrix. After that, we printed the right diagonal of the matrix.
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