function elu_(x) {
	  var $x = convertToTensor(x, 'x', 'elu');
	  var inputs = {
	    x: $x
	  };
	  return ENGINE.runKernel(Elu, inputs);
	}
Computes exponential linear element-wise: `x > 0 ? e ^ x - 1 : 0`.

```js
const x = tf.tensor1d([-1, 1, -3, 2]);

x.elu().print();  // or tf.elu(x)
```
@param x The input tensor.

@doc {heading: 'Operations', subheading: 'Basic math'}