Frederick Cheung wrote: > On Mar 31, 2:38�pm, Robert Walker <[email protected]> wrote: >> a lot of people that also have trouble with this abstraction and find >> algebra difficult to grasp. That does not mean that math instructors >> should stop using x, y and z as abstract placeholders to unknown values >> in a equation. > > I think there is a difference between the case when the two variables > are genuinely independant as opposed to one where there is some > relationship between the two *and* that relationship is an inherent > part of the example being discussed (and where I doing maths I would > convey that by using x_a and x_b or x and x' or something like that).
This is what I've been trying to say - thank you for putting it more succinctly. When the variables have some kind of relationship to each other, using utterly arbitrary words really does detract from the example. Seeing as a lot of RoR deals with data from a relational database, using foo bar makes it much harder to understand - especially in the case of a code snippet where you can't see the class declarations and relevant relationships. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
