paddle. cos ( x, name=None ) [source]

Cosine Operator. Computes cosine of x element-wise.

Input range is (-inf, inf) and output range is [-1,1].

\[out = cos(x)\]
  • x (Tensor) – Input of Cos operator, an N-D Tensor, with data type float32, float64 or float16.

  • name (str, optional) – Name for the operation (optional, default is None). For more information, please refer to Name.


Tensor. Output of Cos operator, a Tensor with shape same as input.


>>> import paddle

>>> x = paddle.to_tensor([-0.4, -0.2, 0.1, 0.3])
>>> out = paddle.cos(x)
>>> print(out)
Tensor(shape=[4], dtype=float32, place=Place(cpu), stop_gradient=True,
[0.92106098, 0.98006660, 0.99500418, 0.95533651])