問題
ruby2.4より
([0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1].sum) == (0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1)
#=> ?
答え
([0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1].sum) == (0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1)
#=> false
([0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1,0.1].sum) #=> 1
(0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1+0.1) #=> 0.999...