📜  红宝石 | BigDecimal to_d()函数

📅  最后修改于: 2022-05-13 01:54:55.031000             🧑  作者: Mango

红宝石 | BigDecimal to_d()函数

BigDecimal#to_d() : to_d()是一个 BigDecimal 类方法,它返回 Big Decimal 的 self。

示例 #1:

# Ruby code for BigDecimal.to_d() method
  
# loading library
require 'bigdecimal'
require 'bigdecimal/util'
  
# declaring bigdecimal
a = BigDecimal("10")
  
# declaring bigdecimal
b = -BigDecimal("10")
  
# declaring bigdecimal
c = -BigDecimal("11.43")
  
# to_d() method
puts "BigDecimal a to_d method : #{a.to_d()}\n\n"
  
puts "BigDecimal b to_d method : #{b.to_d()}\n\n"
  
puts "BigDecimal c to_d method : #{c.to_d()}\n\n"

输出 :

BigDecimal a to_d method : 0.1E2

BigDecimal b to_d method : -0.1E2

BigDecimal c to_d method : -0.1143E2


示例 #2:

# Ruby code for BigDecimal.to_d() method
  
# loading library
require 'bigdecimal'
require 'bigdecimal/util'
  
# declaring bigdecimal
a = BigDecimal('12')*12
  
# declaring bigdecimal
b = BigDecimal('10')-(22 ** 7.1) ** 10
  
# declaring bigdecimal
c = BigDecimal('-3')
  
# to_d() method
puts "BigDecimal a to_d method : #{a.to_d()}\n\n"
  
puts "BigDecimal b to_d method : #{b.to_d()}\n\n"
  
puts "BigDecimal c to_d method : #{c.to_d()}\n\n"

输出 :

BigDecimal a to_d method : 0.144E3

BigDecimal b to_d method : -0.20512110073058639999999999999999999999999999999999999999999999999999999999999999999999999999999E96

BigDecimal c to_d method : -0.3E1