numpy array

Question

I want to make a array like this

q0
q1
q2
q0 q1 q2

i write below code

A = np.empty([n + 1, n + 1],dtype=str)
for i in range(0, n):
for j in range(0, 1):
A[i][j] = "q" .format(i)

for i in range(n, n + 1):
for j in range(1, n + 1):
A[i][j] = "q{}".format(j)

but it displays

q
q
q
q q q
and it dosent have the numbers q0 q1 q2 how can i fix it?

Answer 1

str is object in numpy, so try to replace `dtype=str` to `dtype=object`

And on your line 4
`A[i][j] = "q".format(i)

should be

`A[i][j] = "q{}".format(i)

or you can use f-strings for shorter approach

f"q{j}"

Here's the fixed code.
https://code.sololearn.com/c69a16a8A8A5

Answer 2

Txn a lottttt Eve it works