Decimal＃sqrt()：sqrt()是一個Decimal類方法，該方法將非負數的平方根返回上下文精度。
用法：Decimal.sqrt()
參數：十進製值
返回：非負數的平方根到上下文精度。
代碼1：sqrt()方法示例
# 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())輸出：
Decimal value a : 1 Decimal value b : 2 Decimal a with sqrt() method : 1 Decimal b with sqrt() method : 1.414213562373095048801688724
代碼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())輸出：
Decimal value a : 300 Decimal value b : 15 Decimal a with sqrt() method : 17.32050807568877293527446342 Decimal b with sqrt() method : 3.872983346207416885179265400
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注：本文由純淨天空篩選整理自noobestars101大神的英文原創作品 Python | Decimal sqrt() method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。