Bug #3785: unexpected Numeric#step behaviour

• Status: Rejected
• Assignee: -
• Target version: 1.9.2
• ruby -v: ruby-1.9.2-head

[etehtsea (Konstantin Shabanov)]

=begin
ruby-1.9.2-head > -0.5.step(0.5, 0.1) { |x| puts x }
-0.5
-0.4
-0.3
-0.19999999999999996
-0.09999999999999998
0.0
0.10000000000000009
0.20000000000000007
0.30000000000000004
0.4
0.5
=> -0.5

The same with 1.9.2-p0, but with 1.9.1-p429 and 1.8.7-p302:

ruby-1.8.7-p302 > -0.5.step(0.5, 0.1) { |x| puts x }
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
0.1
0.2
0.3
0.4
0.5
=> -0.5

=end

[darix (Marcus Rückert)]

=begin
maybe the links posted in this ticket http://redmine.ruby-lang.org/issues/show/3746 help?
=end

[naruse (Yui NARUSE)]

• Status changed from Open to Rejected

=begin
Learn floating point numbers.
=end