Question

Please, write a function in PYTHON without NumPy that diagonalizes a square matrix

Answer 1

Ans :

One way is to use list comprehension and enumerate

CODE - and please look at the snapshots for indentation

first = [1,2,3,4]         # global arrays
second = [5,6,7,8]

def fc(first, second):               #function definition
    n = len(first)                   #calculating length of input array  
    res = [[i]*n for i in first]    # resultant array declaration
    for idx, j in enumerate(second): # enumerate
        res[idx][idx] += j
    return res                        # returning the resulting array              

res = fc(first, second)           # call for function
print(res)                       # printing result

Snapshots -:

Output :