Python|十进制 exp() 方法

Decimal#exp() : exp()是一个 Decimal 类方法，它返回给定数字的（自然）指数函数e**x 的值

Syntax: Decimal.exp()

Parameter: Decimal values

Return: the value of the (natural) exponential function e**x at the given number

代码 #1：exp() 方法的示例

# Python Program explaining 
# exp() method
  
# loading decimal library
from decimal import *
  
  
# Initializing a decimal value
a = Decimal(-1)
  
b = Decimal('0.142857')
  
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
  
  
# Using Decimal.exp() method
print ("\n\nDecimal a with exp() method : ", a.exp())
  
print ("Decimal b with exp() method : ", b.exp())

输出 ：

Decimal value a :  -1
Decimal value b :  0.142857


Decimal a with exp() method :  0.3678794411714423215955237702
Decimal b with exp() method :  1.153564830100120253802476512

代码 #2：exp() 方法的示例

# Python Program explaining 
# exp() method
  
# loading decimal library
from decimal import *
  
  
# Initializing a decimal value
a = Decimal('-3.14')
  
b = Decimal('7.555')
  
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
  
  
# Using Decimal.exp() method
print ("\n\nDecimal a with exp() method : ", a.exp())
  
print ("Decimal b with exp() method : ", b.exp())

输出 ：

Decimal value a :  -3.14
Decimal value b :  7.555


Decimal a with exp() method :  0.04328279790196590079772976615
Decimal b with exp() method :  1910.270243928773816178935745