tf.conj(x, name=None)

tf.conj(x, name=None)

See the guide: Math > Complex Number Functions

Returns the complex conjugate of a complex number.

Given a tensor input of complex numbers, this operation returns a tensor of complex numbers that are the complex conjugate of each element in input. The complex numbers in input must be of the form \(a + bj\), where a is the real part and b is the imaginary part.

The complex conjugate returned by this operation is of the form \(a - bj\).

For example:

# tensor 'input' is [-2.25 + 4.75j, 3.25 + 5.75j]
tf.conj(input) ==> [-2.25 - 4.75j, 3.25 - 5.75j]

If x is real, it is returned unchanged.


  • x: Tensor to conjugate. Must have numeric type.
  • name: A name for the operation (optional).


A Tensor that is the conjugate of x (with the same type).


  • TypeError: If x is not a numeric tensor.

Defined in tensorflow/python/ops/