Often times the ceil method is used for patterns that involve grouping. For example, if I have an array of objects and I want to group them in rows of 3, I might do this:
(@objects.size / 3.0).ceil So if size returns 2, then the above expression returns 1. Here's my question. In terms of arithmetic, I dont understand why 3.0 must be used and not just 3. If I was to calculate 2/3.0 and 2/3 in a calculator, it returns same result, after all, since .0 is meaningless. Its like 3.00 or 3.0000 it all means the same. So why does ceil return different results with 2/3.0 and 2/3? thanks for response -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/nln7GDpfo7sJ. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en-US.
