How does the function insert work with an argument involving matrices?

Question

For example:

x = [
[1,2,3],
[4,5,6]
]

x.insert ([0][1],7) should insert 7 in place of the 2. Whats the correct syntax for this command?

Answer 1

iicey

insert function will insert new item on a particular index, it will not replace already exist value.

to replace do this:

x[0][1] = 7

Answer 2

Awesome! Thank you