# Elementwise functions for deep learning

Let's say I want to define a softmax function over a vector input.

In Python/Numpy that would look something like this

```
X = np.array([x1, x2, x3])
numerators = np.exp(X)
denominator = np.sum(numerators)
softmax_probs = numerators / denominators # [e^x1 / sum(e^x1, e^x2, e^x3), e^x2 / sum(e^x1, e^x2, e^x3),...
```

What would be a good way of going about this in sage?

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