How do solve by MATLAB?

[Walter Roberson]

MATLAB does not have that | or > or <> operators built in, so you would have to program them as functions.

I have no idea what they mean, so I cannot offer implementation suggestions.

[Idrees Muhammad]

This is the ket notation, I also don't know how write in Matlab 😭

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/1883082-how-can-write-dirac-bra-ket-notation-in-matlab-example-please#answer_1134087