```
In [1]:
```from IPython.display import Image

```
In [2]:
```Image(filename='normaldist.png')

```
Out[2]:
```

\begin{equation*}
f(x,\mu,\sigma) = \frac{1} {\sigma\sqrt{2\pi}} e^{-\frac{(x-\mu)^2}{2\sigma^2}}
\end{equation*}

```
In [3]:
```Image(filename='tdseqn.png')

```
Out[3]:
```

\begin{equation*}
i\hbar \frac {\partial}{\partial{t}} \Psi (\mathbf{r}, t) =
\left[ \frac {-\hbar^2} {2\mu} \nabla ^ 2 + V(\mathbf{r},t)
\right]
\Psi(\mathbf{r},t)
\end{equation*}

```
In [4]:
```Image(filename='delsquared.png')

```
Out[4]:
```

\begin{equation*}
\triangle f = \frac{1}{r^2} \frac{\partial}{\partial{r}}
\left( r^2\frac{\partial{f}}{\partial{r}} \right) +
\frac{1}{r^2 \sin{\theta}}
\frac{\partial}{\partial{\theta}}
\left( \sin{\theta} \frac{\partial{f}}{\partial{\theta}} \right) +
\frac {1}{r^2 \sin^2 \theta} \frac{\partial^2{f}}{\partial^2 \varphi^2}
\end{equation*}

```
In [ ]:
```