MHB Double Integral A₁, -1 - Does it Check Out?

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The discussion revolves around the evaluation of the double integral A₁, -1, specifically whether the calculations leading to A₁, -1 = 100√3/√π are accurate. The integral involves the expression e^{-iϕ} and the sine function over specified limits. The initial steps show a transformation of the integral, simplifying it to a single integral. Ultimately, the poster acknowledges finding an error in their previous work related to Spherical Harmonics, indicating that the original question about the correctness of the integral is no longer necessary. The focus remains on the mathematical evaluation and its implications for understanding spherical harmonics.
Dustinsfl
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\begin{alignat*}{3}
A_{1,-1} & = & \frac{50\sqrt{3}}{\sqrt{2\pi}}\int_{-\pi/4}^{\pi/4}\int_0^{\pi}e^{-i\varphi}\sin\theta d\theta d\varphi\\
& = & \frac{100\sqrt{3}}{\sqrt{2\pi}}\int_{-\pi/4}^{\pi/4}e^{-i\varphi}d\varphi\\
& = & \frac{100\sqrt{3}}{\sqrt{\pi}}\\
\end{alignat*}

Is this correct?
 
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dwsmith said:
\begin{alignat*}{3}
A_{1,-1} & = & \frac{50\sqrt{3}}{\sqrt{2\pi}}\int_{-\pi/4}^{\pi/4}\int_0^{\pi}e^{-i\varphi}\sin\theta d\theta d\varphi\\
& = & \frac{100\sqrt{3}}{\sqrt{2\pi}}\int_{-\pi/4}^{\pi/4}e^{-i\varphi}d\varphi\\
& = & \frac{100\sqrt{3}}{\sqrt{\pi}}\\
\end{alignat*}

Is this correct?

No need to answer this question. I was asking this in reference to something I was doing in Spherical Harmonics. I found the error of my way.
 

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