Q:

Ruby program to print the transpose matrix

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YasminRadwan26
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2022-07-22
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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 transpose of the matrix.

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YasminRadwan26
2022-07-22
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Program/Source Code:

The source code to print the transpose matrix is given below. The given program is compiled and executed successfully.

# Ruby program to print the 
# transpose matrix

TwoDArr = Array.new(3){Array.new(3)}
sum = 0;

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 "Transpose of matrix:\n";
i = 0;
while (i < 3)
  j = 0;
  while (j < 3) 
    print TwoDArr[j][i]," ";
    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 
Transpose of matrix:
1 4 7 
2 5 8 
3 6 9

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 transpose of the matrix.

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