Python|十进制 sqrt() 方法

Decimal#sqrt() : sqrt()是一个 Decimal 类方法，它返回一个非负数的平方根到上下文精度。

Syntax: Decimal.sqrt()

Parameter: Decimal values

Return: the Square root of a non-negative number to context precision.

代码 #1： sqrt() 方法的示例

# Python Program explaining 
# sqrt() method
  
# loading decimal library
from decimal import *
  
  
# Initializing a decimal value
a = Decimal(1)
  
b = Decimal(2)
  
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
  
  
# Using Decimal.sqrt() method
print ("\n\nDecimal a with sqrt() method : ", a.sqrt())
  
print ("Decimal b with sqrt() method : ", b.sqrt())

输出 ：

Decimal value a :  1
Decimal value b :  2


Decimal a with sqrt() method :  1
Decimal b with sqrt() method :  1.414213562373095048801688724

代码 #2： sqrt() 方法的示例

# Python Program explaining 
# sqrt() method
  
# loading decimal library
from decimal import *
  
  
# Initializing a decimal value
a = Decimal(300)
  
b = Decimal(15)
  
  
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
  
  
# Using Decimal.sqrt() method
print ("\n\nDecimal a with sqrt() method : ", a.sqrt())
  
print ("Decimal b with sqrt() method : ", b.sqrt())

输出 ：

Decimal value a :  300
Decimal value b :  15


Decimal a with sqrt() method :  17.32050807568877293527446342
Decimal b with sqrt() method :  3.872983346207416885179265400