Python log10()用法及代码示例

Decimal＃log10()：log10()是一个Decimal类方法，它返回Decimal值的以10为底的对数。

用法：Decimal.log10()

参数：十进制值

返回：十进制值的十进制对数。

代码1：log10()方法的示例

# Python Program explaining  
# log10() method 
  
# loading decimal library 
from decimal import *
  
  
# Initializing a decimal value 
a = Decimal('.9932') 
  
b = Decimal('0.142857') 
  
# printing Decimal values 
print ("Decimal value a : ", a) 
print ("Decimal value b : ", b) 
  
  
# Using Decimal.log10() method 
print ("\n\nDecimal a with log10() method : ", a.log10()) 
  
print ("Decimal b with log10() method : ", b.log10())

输出：

Decimal value a :  0.9932
Decimal value b :  0.142857


Decimal a with log10() method :  -0.002963289117473302730973454338
Decimal b with log10() method :  -0.8450984743089558813497604715

代码2：log10()方法的示例

# Python Program explaining  
# log10() method 
  
# loading decimal library 
from decimal import *
  
  
# Initializing a decimal value 
a = Decimal('3.14') 
  
b = Decimal('321e + 5') 
  
# printing Decimal values 
print ("Decimal value a : ", a) 
print ("Decimal value b : ", b) 
  
  
# Using Decimal.log10() method 
print ("\n\nDecimal a with log10() method : ", a.log10()) 
  
print ("Decimal b with log10() method : ", b.log10())

输出：

Decimal value a :  3.14
Decimal value b :  3.21E+7


Decimal a with log10() method :  0.4969296480732149319752200246
Decimal b with log10() method :  7.506505032404872078129569143

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注：本文由纯净天空筛选整理自noobestars101大神的英文原创作品 Python | Decimal log10() method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。