# Circuit state preparation using amplitude encoding

I am following an example of preparing an input state using amplitude encoding from this book.

How to calculate $$\beta_1^1$$ using given formula above? In my understanding, $$\beta_1^1 = 2\arcsin(\frac{\alpha_2}{\alpha_0})$$ which is not equal to zero.

• I came here and 4 people had already voted to close due to "needs more focus'. The reason for this is because you're asking more than one question in a single post. Jun 28 at 1:37
• I have modified the question. Could you open it again? Jun 29 at 16:37
• Thanks for narrowing it down! Still, the question body says "How to calculate β11 using given fomula above?" and you haven't given any "formula above". Jun 29 at 17:35