简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Backend Development > Python Tutorial > body text

用Python计算三角函数之atan()方法的使用

WBOY
Release： 2016-06-10 15:12:30
Original
1872 people have browsed it

 atan()方法返回x的反正切值，以弧度表示。
Syntax

以下是atan()方法的语法：

atan(x)

注意：此函数是无法直接访问的，所以我们需要导入math模块，然后需要用math的静态对象来调用这个函数。
参数

  •     x -- 这必须是一个数值。

返回值

此方法返回 x 的反正切值，以弧度表示。
例子

下面的例子显示atan()方法的使用。

#!/usr/bin/python
import math

print "atan(0.64) : ", math.atan(0.64)
print "atan(0) : ", math.atan(0)
print "atan(10) : ", math.atan(10)
print "atan(-1) : ", math.atan(-1)
print "atan(1) : ", math.atan(1)
Copy after login

当我们运行上面的程序，它会产生以下结果：

atan(0.64) : 0.569313191101
atan(0) : 0.0
atan(10) : 1.4711276743
atan(-1) : -0.785398163397
atan(1) : 0.785398163397
Copy after login

Related labels：
python
source：php.cn
Previous article：python中base64加密解密方法实例分析 Next article：Python中的random()方法的使用介绍
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Python/MySQL cannot persist integer data correctly No code is required here. I want to save a very long number because I'm making a game and ...
From 2024-04-04 19:09:44
0
1
367
Using selenium want to click and define URL in class I need another tip today. I'm trying to build Python/Selenium code and the idea is to clic...
From 2024-04-04 14:14:44
0
1
3492
Selenium + Python - inspect image via execute_script I need to verify that an image is displayed on the page using selenium in python. For exam...
From 2024-04-03 09:32:15
0
1
375
How to keep the first X rows and delete table rows I have a big table with millions of records in MySQLincident_archive, I want to sort the r...
From 2024-04-01 18:32:54
0
1
347
How to scrape specific Google Weather text using BeautifulSoup? How to find the course text "New York City, USA" in Python using BeautifulSoup? ...
From 2024-04-01 14:06:14
0
1
308
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！