Ctrl+K

elu#

ivy.elu(x, /, *, alpha=1.0, out=None)[source]#

Apply the elu unit function element-wise.

Parameters:

  • x (Union[Array, NativeArray]) – Input array.

  • alpha (float, default: 1.0) – scaler for controlling the slope of the function for x <= 0 Default: 1.0

  • out (Optional[Array], default: None) – optional output array, for writing the result to. It must have a shape that the inputs broadcast to.

Return type:

Array

Returns:

ret – The input array with elu applied element-wise.

Examples

With ivy.Array input: >>> x = ivy.array([0.39, -0.85]) >>> y = ivy.elu(x) >>> print(y) ivy.array([ 0.38999999, -0.57258511]) >>> x = ivy.array([1.5, 0.7, -2.4]) >>> y = ivy.zeros(3) >>> ivy.elu(x, out=y) >>> print(y) ivy.array([ 1.5, 0.69999999, -0.90928203]) >>> x = ivy.array([[1.1, 2.2, 3.3], … [-4.4, -5.5, -6.6]]) >>> ivy.elu(x, out=x) >>> print(x) ivy.array([[ 1.10000002, 2.20000005, 3.29999995],

[-0.98772264, -0.99591321, -0.99863964]])

With ivy.Container input: >>> x = ivy.Container(a=ivy.array([0.0, -1.2]), b=ivy.array([0.4, -0.2])) >>> x = ivy.elu(x, out=x) >>> print(x) {

a: ivy.array([0., -0.69880581]), b: ivy.array([0.40000001, -0.18126924])

}

Array.elu(self, /, *, alpha=1.0, out=None)[source]#

Ivy.Array instance method variant of ivy.elu. This method simply wraps the function, and so the docstring for ivy.elu also applies to this method with minimal.

Parameters:

  • self – input array.

  • alpha (float, default: 1.0) – scaler for controlling the slope of the function for x <= 0 Default: 1.0

  • out (Optional[Array], default: None) – optional output array, for writing the result to. It must have a shape that the inputs broadcast to.

Return type:

Array

Returns:

ret – an array with the elu activation function applied element-wise.

Examples

>>> x = ivy.array([0.39, -0.85])
>>> y = x.elu()
>>> print(y)
ivy.array([ 0.39, -0.57])
Container.elu(self, /, *, alpha=1.0, key_chains=None, to_apply=True, prune_unapplied=False, map_sequences=False, out=None)[source]#

ivy.Container instance method variant of ivy.elu. This method simply wraps the function, and so the docstring for ivy.elu also applies to this method with minimal changes.

Parameters:

  • self (Container) – input container.

  • alpha (Container, default: 1.0) – scaler for controlling the slope of the function for x <= 0 Default: 1.0

  • key_chains (Optional[Union[List[str], Dict[str, str], Container]], default: None) – The key-chains to apply or not apply the method to. Default is None.

  • to_apply (Union[bool, Container], default: True) – If True, the method will be applied to key_chains, otherwise key_chains will be skipped. Default is True.

  • prune_unapplied (Union[bool, Container], default: False) – Whether to prune key_chains for which the function was not applied. Default is False.

  • map_sequences (Union[bool, Container], default: False) – Whether to also map method to sequences (lists, tuples). Default is False.

  • out (Optional[Container], default: None) – optional output container, for writing the result to. It must have a shape that the inputs broadcast to.

Return type:

Container

Returns:

ret – a container with the elu unit function applied element-wise.

Examples

>>> x = ivy.Container(a=ivy.array([0.39, -0.85]), b=ivy.array([1., -0.2]))
>>> y = x.elu()
>>> print(y)
{
    a: ivy.array([0.38999999, -0.57]),
    b: ivy.array([1., -0.18])
}
On this page