Comparison failure: 9.8.abs <= BigDecimal('9.8') => false about bigdecimal HOT 4 CLOSED

9.7.abs <= BigDecimal('9.7')
=> true

# It's not only with `#abs`, also without it
[40] pry(main)> 9.8 <= BigDecimal('9.8')
=> false

# when we calculate the delta we see a small, but non-zero result
[41] pry(main)> 9.8.to_d - BigDecimal('9.8')
=> 0.1e-14

# if we use the `Float::DIG` constant it's OK
[42] pry(main)> 9.8.to_d(15) - BigDecimal('9.8')
=> 0.0

# if we use the `Float::DIG+1` constant it's no OK (the new default) after https://github.com/ruby/bigdecimal/commit/aa536cd4b585ff6045cf91f396bc3eef993b91f2
[43] pry(main)> 9.8.to_d(16) - BigDecimal('9.8')
=> 0.1e-14

# because of how the representation looks like
[44] pry(main)> 9.8.to_d(16) 
=> 0.9800000000000001e1

[8] pry(main)> 9.8.abs <= BigDecimal('9.8')
=> true
[9] pry(main)> BigDecimal::VERSION
=> "3.1.2"