atan¶

paddle.fluid.layers.atan(x, name=None)

Arctanh Activation Operator.

$$out = tanh^{-1}(x)$$

Parameters

• x – Input of atan operator

• name (str, optional) – The default value is None. Normally there is no need for user to set this property. For more information, please refer to Name .

Returns

Output of atan operator

Return type

Variable

System Message: WARNING/2 (/usr/local/lib/python2.7/dist-packages/paddle/fluid/layers/layer_function_generator.py:docstring of paddle.fluid.layers.atan, line 14)

Definition list ends without a blank line; unexpected unindent.

Examples

import paddle.fluid as fluid
import numpy as np

inputs = fluid.data(name="x", shape = [None, 4], dtype='float32')
output = fluid.layers.atan(inputs)

exe = fluid.Executor(fluid.CPUPlace())
exe.run(fluid.default_startup_program())

#input.shape=1X4, batch_size=1
img = np.array([[1.0, 2.0, 3.0, 4.0]]).astype(np.float32)
res = exe.run(fluid.default_main_program(), feed={'x':img}, fetch_list=[output])
print(res)