# matplotlib.

For quick plotting, you can't go wrong with matplotlib.

**Notes**

The you want to make a scatter chart you can run;

```
import numpy as np
import matplotlib.pylab as plt
x = np.linspace(0, 1, 20)
y = x ** 2
plt.scatter(x, y);
```

The you want to make a histogram you can run;

```
import numpy as np
import matplotlib.pylab as plt
x = np.linspace(0, 1, 100)
y = x ** 2
plt.hist(y, bins=30);
```

Note the semi-colon at the end here.

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