How do you print diagonal elements of a matrix?

1. For Principal Diagonal elements: Run a for a loop until n, where n is the number of columns, and print array[i][i] where i is the index variable.
2. For Secondary Diagonal elements: Run a for a loop until n, where n is the number of columns and print array[i][k] where i is the index variable and k = array_length – 1.

How do you get all the diagonal elements of a matrix in python?

1. print(“original matrix is :\n”,a) print(“original matrix is :\n”,a)
2. m=a.diagonal() m=a.diagonal()
3. print(“diagonal elements \n:”, m) print(“diagonal elements \n:”, m)

How do you print the diagonal elements of a matrix in CPP?

So, to print diagonal elements of a matrix in C++:

1. Loop from i=0 to i< size of the matrix.
2. Nest another for loop from j=0 to i< size of the matrix.
3. Check if(i==j || i+j==SIZE-1) . If yes then print matrix[i][j] else print whitespace.
4. End the loops.

How do you extract a diagonal matrix?

D = diag( v ) returns a square diagonal matrix with the elements of vector v on the main diagonal. D = diag( v , k ) places the elements of vector v on the k th diagonal. k=0 represents the main diagonal, k>0 is above the main diagonal, and k<0 is below the main diagonal.

How do I print diagonal numbers?

Approach: Create a matrix of size N X N which will store the pattern before printing. Store the elements in the upper triangle of the pattern. As observed the row index increases by 1 and column index decreases by 1 as you move down the diagonal.

How do you print a diagonal pattern in Python?

“Write a python program to print the given number of diagonal lines of stars” Code Answer

1. rows = 6 #Pattern(1,121,12321,1234321,123454321)
2. for i in range(1, rows + 1):
3. for j in range(1, i – 1):
4. print(j, end=” “)
5. for j in range(i – 1, 0, -1):
6. print(j, end=” “)

How do you find the diagonal of a matrix in Java?

1. { public static void main(String args[])
2. { Scanner sc = new Scanner(System. in);
3. int i,j,row,col,sum=0;
4. System. out. println(“Enter the number of rows:”); row = sc. nextInt();
5. System. out. println(“Enter the number of columns:”); col = sc. nextInt();

How do I print a diagonal array?

Start from the index (0,0) and print the elements diagonally upward then change the direction, change the column and print diagonally downwards. This cycle continues until the last element is reached. Algorithm: Create variables i=0, j=0 to store the current indices of row and column.

How do I print diagonal numbers in Python?