📜  Python| math.copysign()函数

📅  最后修改于: 2022-05-13 01:55:32.948000             🧑  作者: Mango

Python| math.copysign()函数

在Python中,数学模块包含许多数学运算,可以使用该模块轻松执行。 math.copysign(a, b)函数返回一个浮点数,其大小(绝对值)为 a,但符号为 b。

Syntax: math.copysign(a, b)

Parameter:
a, b: numeric values.

Returns:  Return absolute value of a but the sign of b.

代码#1:

# Python code to demonstrate the working of copysign()
    
# importing "math" for mathematical operations 
import math 
    
a = 5.2
b = -25
    
# returning the copysign 
print ("The copysign of 5.2 and -25 is : ", end ="") 
print (math.copysign(a, b))
输出:
The copysign of 5.2 and -25 is : -5.2

代码#2:

# Python code to demonstrate the working of factorial()
  
# importing "math" for mathematical operations 
import math 
  
# returning the copysign
print (math.copysign(-13, 25.5))
print (math.copysign(2.87, -15))
输出:
13.0
-2.87