# Hello, Quarto




## Polar Axis

For a demonstration of a line plot on a polar axis, see [Figure 1](#fig-polar).

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``` python
import numpy as np
import matplotlib.pyplot as plt

r = np.arange(0, 2, 0.01)
theta = 2 * np.pi * r
fig, ax = plt.subplots(subplot_kw={'projection': 'polar'})
ax.plot(theta, r)
ax.set_rticks([0.5, 1, 1.5, 2])
ax.grid(True)
plt.show()
```

<figure>
<img src="index_files/figure-gfm/fig-polar-output-1.png" id="fig-polar" width="442" height="432" alt="Figure 1: A line plot on a polar axis" />
<figcaption aria-hidden="true">Figure 1: A line plot on a polar axis</figcaption>
</figure>

## Equation

$$
chi' = sum_{i=1}^n k_i s_i^2+2+4-2-5
$$

{{< ref "/posts/quarto_test" >}}
