qiskit-textbook

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Asking more questions which are not just related to implementation.

14

**Is your feature request related to a problem? Please describe.** For example if you see [Grover's algorithm](https://qiskit.org/textbook/ch-algorithms/grover.html#problems) section in qiskit textbook, you would see in problems part there are two...

Hirmay

Localization Spanish

4

The first Spanish translation.

ManuelSLemos

Fix Wikipedia link by escaping brackets

5

### Describe the problem See the page about density matrix, [part Trace and Positivity Conditions](https://qiskit.org/textbook/ch-quantum-hardware/density-matrix.html#Trace-and-Positivity-Conditions-) --- Its trace must be equal to one: Remembering that the [trace of a matrix](https://en.wikipedia.org/wiki/Trace_(linear_algebra))...

denvitko

[4.1.3] correct equation error

2

# Changes made In the last equations in section [5.2](https://qiskit.org/textbook/ja/ch-applications/qaoa.html#5.2-最適な試行状態のパラメーター-), the right hand side of fA, fB, and F1 are incorrect. Results that rely on this are also incorrect. The...

yoshioka1128

[4.2.4] Travelling Salesman Problem with QPE: Error in the Hamiltonian Cycles (Issue #1451)

2

Fixed the Hamiltonian cycles in Chapter [4.2.4] as issued in #1451 # Changes made - Removed duplicated Hamiltonian cycles - Adding missing cycle # Justification This change is needed to...

nquetschlich

### Describe the bug https://qiskit.org/textbook/ch-paper-implementations/tsp.html#general_strategy At the end of the "General Strategy" Section, all three Hamiltonian cycles are listed as: Sequence path | Eigenstates -- | -- 1−2−3−4 |\|11000110 ⟩...

nquetschlich

[4.1.3] analytical formulas of the Japanese version is wrong

2

### Describe the issue In the last equations in section [5.2](https://qiskit.org/textbook/ja/ch-applications/qaoa.html#5.2-最適な試行状態のパラメーター-), the right hand side of fA, fB, and F1 are incorrect. Results that rely on this are also incorrect....

yoshioka1128

README should include detailed instructions for building/running site locally[]

1

### Describe the problem I am having trouble setting up the correct Ruby environment to build the site using the `build.sh` script. Some guidance on versions, etc., would be helpful....

dwvisser

"ibmq_armonk" -> "ibmq_manila"

2

# Changes made # Justification

omarshehab

### Describe the issue Textbook calls a 1D-Vector 4D. ![Uploading 4d1dvec.png…]() ### Describe what you expect to see I expected to see 1D vector. It should have four elements, not...

InfamousPlatypus