Ruby | BigDecimal round() function

BigDecimal#round() : round() is a BigDecimal class method which rounds the Big decimal to the nearest integer.

Syntax: BigDecimal.round()

Parameter: BigDecimal values

Return: rounds the Big decimal to the nearest integer.

Example #1 :

# Ruby code for BigDecimal.round() method

# loading library
require 'bigdecimal'

# declaring bigdecimal
a = 42.1**13

# declaring bigdecimal
b = -BigDecimal("10")

# declaring bigdecimal
c = -(22 ** 7.1) * 10

# round() method
puts "BigDecimal round example : #{a.round()}\n\n"

puts "BigDecimal round example : #{b.round()}\n\n"

puts "BigDecimal round example : #{c.round()}\n\n"

Output :

BigDecimal round example : 1305170490200643862528

BigDecimal round example : -10

BigDecimal round example : -33978252068

Example #2 :

# Ruby code for BigDecimal.round() method

# loading library
require 'bigdecimal'

# declaring bigdecimal
a = 12**12 - 27

# declaring bigdecimal
b = BigDecimal('10')-(22 ** 7.1) ** 10

# declaring bigdecimal
c = BigDecimal('-3')

# round() method
puts "BigDecimal round example : #{a.round()}\n\n"

puts "BigDecimal round example : #{b.round()}\n\n"

puts "BigDecimal round example : #{c.round()}\n\n"

Output :

BigDecimal round example : 8916100448229

BigDecimal round example : -205121100730586399999999999999999999999999999999999999999999999999999999999999999999999999999990

BigDecimal round example : -3