# Acosh¶

Versioned name : Acosh-3

Category : Arithmetic unary

Short description : Acosh performs element-wise hyperbolic inverse cosine (arccosh) operation with given tensor.

Detailed description : Operation takes one input tensor and performs the element-wise hyperbolic inverse cosine operation on a given input tensor, based on the following mathematical formula:

$a_{i} = acosh(a_{i})$

Attributes : Acosh operation has no attributes.

Inputs

• 1 : A tensor of type T and arbitrary shape. Required.

Outputs

• 1 : The result of element-wise Acosh operation. A tensor of type T and the same shape as the input tensor.

Types

• T : any numeric type.

Examples

<layer ... type="Acosh">
<input>
<port id="0">
<dim>256</dim>
<dim>56</dim>
</port>
</input>
<output>
<port id="1">
<dim>256</dim>
<dim>56</dim>
</port>
</output>
</layer>