Sigmoid {#dev_guide_op_sigmoid}
===============================

## General

Sigmoid operation applies following formula on every element of \src tensor 
(the variable names follow the standard @ref dev_guide_conventions):

\f[ dst = \frac{1}{1 + e^{-src}} \f]

## Operation attributes

Sigmoid operation does not support any attribute.

## Execution arguments

The inputs and outputs must be provided according to below index order when
constructing an operation.

### Inputs

| Index | Argument Name | Required or Optional |
|:------|:--------------|:---------------------|
| 0     | `src`         | Required             |

### Outputs

| Index | Argument Name | Required or Optional |
|:------|:--------------|:---------------------|
| 0     | `dst`         | Required             |

## Supported data types

Sigmoid operation supports the following data type combinations.

| Src  | Dst  |
|:-----|:-----|
| f32  | f32  |
| bf16 | bf16 |
| f16  | f16  |