Sqrt

Versioned name: Sqrt-1

Category: Arithmetic unary

Short description: Square root element-wise operation.

Detailed description: Sqrt performs element-wise square root operation on a given input tensor a, as in the following mathematical formula, where o is the output tensor:

\[o_{i} = \sqrt{a_{i}}\]

• If the input value is negative, then the result is undefined.

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

Attributes: Sqrt operation has no attributes.

Inputs

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

Outputs

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

Types

• T: any numeric type.

Examples

Example 1

<layer ... type="Sqrt">
    <input>
        <port id="0">
            <dim>4</dim> < !-- float input values: [4.0, 7.0, 9.0, 10.0] -->
        </port>
    </input>
    <output>
        <port id="1">
            <dim>4</dim> < !-- float output values: [2.0, 2.6457512, 3.0, 3.1622777] -->
        </port>
    </output>
</layer>

Example 2

<layer ... type="Sqrt">
    <input>
        <port id="0">
            <dim>4</dim> < !-- int input values: [4, 7, 9, 10] -->
        </port>
    </input>
    <output>
        <port id="1">
            <dim>4</dim> < !-- int output values: [2, 3, 3, 3] -->
        </port>
    </output>
</layer>

Example 3

<layer ... type="Sqrt">
    <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>