python create a matrix with one in diagonal
# Create a matrix in python and fill
import numpy as np
a = np.zeros((3, 3), int) # Create matrix with only 0
np.fill_diagonal(a, 1) # fill diagonal with 1
print(a)python create a matrix with one in diagonal
# Create a matrix in python and fill
import numpy as np
a = np.zeros((3, 3), int) # Create matrix with only 0
np.fill_diagonal(a, 1) # fill diagonal with 1
print(a)python diagonal sum
# A simple Python3 program to find
# sum of diagonals
MAX = 100
def printDiagonalSums(mat, n):
principal = 0
secondary = 0
for i in range(0, n):
principal += mat[i][i]
secondary += mat[i][n - i - 1]
print("Principal Diagonal:", principal)
print("Secondary Diagonal:", secondary)
# Driver code
a = [[ 1, 2, 3, 4 ],
[ 5, 6, 7, 8 ],
[ 1, 2, 3, 4 ],
[ 5, 6, 7, 8 ]]
printDiagonalSums(a, 4)
# This code is contributed
# by ihritikCopyright © 2021 Codeinu
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