带有Python示例的math.atan()方法
Pythonmath.atan()方法
math.atan()方法是数学模块的库方法，用于获取反正切，它接受一个数字并返回给定数字的反正切值（以弧度为单位）。
注意：math.atan()方法接受的唯一的号码，如果我们提供任何其他除外数量，则返回错误类型错误-“类型错误：需要浮动”。
它的语法math.atan()方法：
math.atan(x)
Parameter(s)：x–是要计算其反正切值的数字。
返回值：float-返回浮点值，该浮点值是数字x的反正切值。
示例
Input:
a = 0.278
#函数调用
print(math.atan(a))
Output:
0.27115314223853704Python代码演示示例math.atan()方法
#python代码演示示例
# math.atan() method
#导入数学模块
import math
#数
a = -1
print("atan(",a,") is = ", math.atan(a))
a = 0
print("atan(",a,") is = ", math.atan(a))
a = 0.278
print("atan(",a,") is = ", math.atan(a))
a = 1
print("atan(",a,") is = ", math.atan(a))
a = 123
print("atan(",a,") is = ", math.atan(a))输出结果
atan( -1 ) is = -0.7853981633974483 atan( 0 ) is = 0.0 atan( 0.278 ) is = 0.27115314223853704 atan( 1 ) is = 0.7853981633974483 atan( 123 ) is = 1.5626664246149526
TypeError示例
#python代码演示示例
# math.atan() method with an exception
#导入数学模块
import math
#数
a = "2"
print("atan(",a,") is = ", math.atan(a))输出结果
Traceback (most recent call last):
File "/home/main.py", line 9, in <module>
print("atan(",a,") is = ", math.atan(a))
TypeError: a float is required