# Round¶

Versioned name : Round-5

Category : Arithmetic unary

Short description : Round performs element-wise round operation with given tensor.

Detailed description : Operation takes one input tensor and rounds the values, element-wise, meaning it finds the nearest integer for each value. In case of halves, the rule is to round them to the nearest even integer if `mode` attribute is `half_to_even` or rounding in such a way that the result heads away from zero if `mode` attribute is `half_away_from_zero`.

```Input = [-4.5, -1.9, -1.5, 0.5, 0.9, 1.5, 2.3, 2.5]

round(Input, mode = `half_to_even`) = [-4.0, -2.0, -2.0, 0.0, 1.0, 2.0, 2.0, 2.0]

round(Input, mode = `half_away_from_zero`) = [-5.0, -2.0, -2.0, 1.0, 1.0, 2.0, 2.0, 3.0]
```

Attributes :

• mode

• Description : If set to `half_to_even` then the rule is to round halves to the nearest even integer, if set to `half_away_from_zero` then rounding in such a way that the result heads away from zero.

• Range of values : `half_to_even` or `half_away_from_zero`

• Type : string

• Default value : `half_to_even`

• Required : no

Inputs

• 1 : A tensor of type T. Required.

Outputs

• 1 : The result of element-wise round operation. A tensor of type T.

Types

• T : any numeric type.

Example

```<layer ... type="Round">
<data mode="half_to_even"/>
<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>```