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Ruby | BigDecimal -@ value

  • Last Updated : 07 Jan, 2020

BigDecimal#-@() : -@() is a BigDecimal class method which return its own self value. It works as -@a = -(a)

Syntax:  BigDecimal.-@()

Parameter:  BigDecimal value

Return:  Negative Self

Code #1 : Example for -@() method




# Ruby code for BigDecimal.-@() method
  
# loading BigDecimal
require 'bigdecimal'
  
# declaring BigDecimal
a = -42.1 ** 13
  
# declaring BigDecimal
b = BigDecimal("10")
  
# declaring BigDecimal
c = -(22 - 7.1)- 10
  
# NEGATION RESULT
puts "-@a : #{-a}\n\n"
puts "-@b : #{-b}\n\n"
puts "-@c : #{-c}\n\n"

Output :

-@a : 1.3051704902006439e+21

-@b : -0.1E2

-@c : 24.9

Code #2 : Example for -@() method




# Ruby code for BigDecimal.-@() method
  
# loading BigDecimal
require 'bigdecimal'
  
# declaring BigDecimal
a = -12**12 - 27
  
# declaring BigDecimal
b = BigDecimal('10')-(22 * 7.1)**10
  
# declaring BigDecimal
c = BigDecimal('-3')
  
# NEGATION RESULTS
puts "-@a : #{-a}\n\n"
puts "-@b : #{-b}\n\n"
puts "-@c : #{-c}\n\n"

Output :

-@a : 8916100448283

-@b : 0.864590173821032799999E22

-@c : 0.3E1



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