Acos

Acos  // Elementwise acos operation

Description

Produces a tensor of the same element type and shape as arg, where the value at each coordinate of output is the inverse cosine of the value at the corresponding coordinate of arg.

Inputs

Name Element Type Shape
arg Any Any

Outputs

Name Element Type Shape
output Same as arg Same as arg

Mathematical Definition

\[\mathtt{output}_{i_0, \ldots, i_{n-1}} = \cos^{-1}(\mathtt{arg}_{i_0, \ldots, i_{n-1}})\]

Backprop

\[\overline{\mathtt{arg}} \leftarrow -\frac{\Delta}{\sqrt{1-\mathtt{arg}^2}}\]

C++ Interface

class Acos : public ngraph::op::util::UnaryElementwiseArithmetic

Elementwise inverse cosine (arccos) operation.

Public Functions

const std::string &description() const

Get the string name for the type of the node, such as Add or Multiply. The class name, must not contain spaces as it is used for codegen.

Return
A const reference to the node’s type name

Acos()

Constructs an arccos operation.

Acos(const Output<Node> &arg)

Constructs an arccos operation.

Output [d1, ...]

Parameters
  • arg: Output that produces the input tensor.[d1, ...]