tensorflow-acosh,acos

acos函數是反餘弦函數

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
Created on Mon Aug 27 11:16:32 2018

@author: myhaspl
"""

import tensorflow as tf
a = tf.constant([[0.1, -0.2], [-0.3, 0.4]])
result1=tf.acos(a)

sess=tf.Session()
with sess:
    print sess.run(result1)

[[1.4706289 1.7721543]
 [1.875489  1.1592795]]

acosh反雙曲餘弦-X中元素的反雙曲餘弦

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
Created on Mon Aug 27 11:16:32 2018

@author: myhaspl
"""

import tensorflow as tf
a = tf.constant([[1., 2.], [3., 4.]])
result1=tf.acosh(a)

sess=tf.Session()
with sess:
    print sess.run(result1)

[[0.        1.316958 ]
 [1.7627472 2.063437 ]]