bigdecimal

Ruby – Big Decimal sample usage

Situation:

To  subtract Float and Fixnum values

Normally we will write the code like below

puts  f=123.6 - 123

Output:

0.599999999999994

Problem:

The expected output is 0.6 but it returns 0.599999999999994

Solution:

require 'bigdecimal'
x = BigDecimal("123.6") - BigDecimal("123")
puts x.to_f

Output:

0.6

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