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。
Syntax: BigDecimal.to_d()
Parameter: BigDecimal values
Return: the self of Big decimal.
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