1# SPDX-License-Identifier: Apache-2.0
2
3from __future__ import absolute_import
4from __future__ import division
5from __future__ import print_function
6from __future__ import unicode_literals
7
8import numpy as np  # type: ignore
9
10import onnx
11from ..base import Base
12from . import expect
13
14
15class Acos(Base):
16
17    @staticmethod
18    def export():  # type: () -> None
19        node = onnx.helper.make_node(
20            'Acos',
21            inputs=['x'],
22            outputs=['y'],
23        )
24
25        x = np.array([-0.5, 0, 0.5]).astype(np.float32)
26        y = np.arccos(x)
27        expect(node, inputs=[x], outputs=[y],
28               name='test_acos_example')
29
30        x = np.random.rand(3, 4, 5).astype(np.float32)
31        y = np.arccos(x)
32        expect(node, inputs=[x], outputs=[y],
33               name='test_acos')
34