# Ruby code for dup() method
  
# loading BigDecimal
require 'bigdecimal'
  
  
# declaring BigDecimal
b = -BigDecimal("10")
  
  
puts "dup example 2 : #{b.dup()}\n\n"
     ```  

输出:
```ruby 
dup example 2 : -0.1E2

# Ruby code for dup() method
  
# loading BigDecimal
require 'bigdecimal'
  
# declaring BigDecimal
b = BigDecimal('10')-(22 ** 7.1) ** 10
  
# declaring BigDecimal
c = BigDecimal('-3')
  
  
puts "dup example 2 : #{b.dup()}\n\n"
  
puts "dup example 3 : #{c.dup()}\n\n"

dup example 2 : -0.2051211007305863999999999999999999999999999999999999999999999999999999999999999999999999999E96 
dup example 3 : -0.3E1