what is the codes of this equations？

|

[Idrees Muhammad]

[John D'Errico]

Still unclear. What does this mean?

|1>

or

|N+1>

If I had to guess, it looks more like an emoji.

[Idrees Muhammad]

|1>

|N+1>

| is called ket

> is called bra

[Idrees Muhammad]

[Idrees Muhammad]

Basically i want to drive the above graphs。

Help

Answer 1

[Steven Lord]

You probably want to define your kets as vectors. Since you're taking infinite sums you probably want to define them as symbolic vectors and use functions like symsum to compute those sums.

[Idrees Muhammad]

yes

[Idrees Muhammad]

@everyone help me to drive this graph,your little help lead me to complete my assignment.