红宝石 | BigDecimal to_r()函数

BigDecimal#to_r() : to_r()是一个 BigDecimal 类方法，它将 Big Decimal 的值作为有理数返回。

Syntax: BigDecimal.to_r()

Parameter: BigDecimal values

Return: the value of Big decimal as a rational number

示例 #1：

# Ruby code for BigDecimal.to_r() 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_r() method
puts "BigDecimal a to_r method : #{a.to_r()}\n\n"
  
puts "BigDecimal b to_r method : #{b.to_r()}\n\n"
  
puts "BigDecimal c to_r method : #{c.to_r()}\n\n"

输出 ：

BigDecimal a to_r method : 10/1

BigDecimal b to_r method : -10/1

BigDecimal c to_r method : -1143/100

示例 #2：

# Ruby code for BigDecimal.to_r() 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_r() method
puts "BigDecimal a to_r method : #{a.to_r()}\n\n"
  
puts "BigDecimal b to_r method : #{b.to_r()}\n\n"
  
puts "BigDecimal c to_r method : #{c.to_r()}\n\n"

输出 ：

BigDecimal a to_r method : 144/1
BigDecimal b to_r method : -205121100730586399999999999999999999999999999999999999999999999999999999999999999999999999999990/1
BigDecimal c to_r method : -3/1