User:Gerardpc

$$ \psi_n(x) = \frac{1}{\sqrt{2^n\,n!}} \cdot \left(\frac{\alpha^2}{\pi}\right)^{1/4} \cdot e^{ - \frac{\alpha^2 x^2}{2}} \cdot H_n\left( \alpha x \right), \qquad \alpha = \sqrt{\frac{m\omega}{\hbar}}$$

$$ \sqrt{1 + \sqrt{1 + \sqrt{1 + \sqrt{1 + \sqrt{1 + \sqrt{\cdots}}}}}} $$

$$ D = \frac{E}{4\pi r^2} $$