Tanh

Versioned name : Tanh-1

Category : Arithmetic unary

Short description : Tanh performs element-wise hyperbolic tangent (tanh) operation with given tensor.

Detailed description

For each element from the input tensor calculates corresponding element in the output tensor with the following formula:

\[tanh ( x ) = \frac{2}{1+e^{-2x}} - 1 = 2sigmoid(2x) - 1\]

• For integer element type the result is rounded (half up) to the nearest integer value.

Attributes : Tanh operation has no attributes.

Inputs :

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

Outputs :

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

• T : any numeric type.

Examples

Example 1

<layer ... type="Tanh">
    <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>