Subtract

Subtract  // Elementwise subtract operation

Description

Elementwise subtract operation.

Produces tensor of the same element type and shape as the two inputs, where the value at each coordinate of output is the difference of the values at the corresponding input coordinates.

Inputs

Name Element Type Shape
arg0 any any
arg1 same as arg0 same as arg0

Outputs

Name Element Type Shape
output same as arg0 same as arg0

Mathematical Definition

\[\mathtt{output}_{i_0, \ldots, i_{n-1}} = \mathtt{arg0}_{i_0, \ldots, i_{n-1}} - \mathtt{arg1}_{i_0, \ldots, i_{n-1}}\]

Backprop

\[\begin{split}\overline{\mathtt{arg0}} &\leftarrow \Delta \\ \overline{\mathtt{arg1}} &\leftarrow -\Delta\end{split}\]

C++ Interface

class Subtract : public ngraph::op::util::BinaryElementwiseArithmetic

Elementwise subtraction operation.

Public Functions

const NodeTypeInfo &get_type_info() const

Returns the NodeTypeInfo for the node’s class. During transition to type_info, returns a dummy type_info for Node if the class has not been updated yet.

Subtract(const Output<Node> &arg0, const Output<Node> &arg1, const AutoBroadcastSpec &auto_broadcast = AutoBroadcastSpec())

Constructs a subtraction operation.

Parameters
  • arg0: Node that produces the first input tensor.
  • arg1: Node that produces the second input tensor.
  • auto_broadcast: Auto broadcast specification