# Sign¶

## Sign - 13¶

### Version¶

• name: Sign (GitHub)

• domain: main

• since_version: 13

• function: False

• support_level: SupportType.COMMON

• shape inference: True

This version of the operator has been available since version 13.

### Summary¶

Calculate the sign of the given input tensor element-wise. If input > 0, output 1. if input < 0, output -1. if input == 0, output 0.

### Inputs¶

• input (heterogeneous) - T:

Input tensor

### Outputs¶

• output (heterogeneous) - T:

The sign of the input tensor computed element-wise. It has the same shape and type of the input.

### Type Constraints¶

• T in ( tensor(bfloat16), tensor(double), tensor(float), tensor(float16), tensor(int16), tensor(int32), tensor(int64), tensor(int8), tensor(uint16), tensor(uint32), tensor(uint64), tensor(uint8) ):

Constrain input and output types to all numeric tensors.

## Sign - 9¶

### Version¶

• name: Sign (GitHub)

• domain: main

• since_version: 9

• function: False

• support_level: SupportType.COMMON

• shape inference: True

This version of the operator has been available since version 9.

### Summary¶

Calculate the sign of the given input tensor element-wise. If input > 0, output 1. if input < 0, output -1. if input == 0, output 0.

### Inputs¶

• input (heterogeneous) - T:

Input tensor

### Outputs¶

• output (heterogeneous) - T:

The sign of the input tensor computed element-wise. It has the same shape and type of the input.

### Type Constraints¶

• T in ( tensor(double), tensor(float), tensor(float16), tensor(int16), tensor(int32), tensor(int64), tensor(int8), tensor(uint16), tensor(uint32), tensor(uint64), tensor(uint8) ):

Constrain input and output types to all numeric tensors.