Hi Michel,
> I was contemplating discussing something like an interval testing > function. But I also notice that testing something like > > 2.3 in [1 .. 3, step = .1] > > produces False. I feel it's about rounding computation : On my sage I test : 1.0+0.1+0.1+0.1+0.1 # displays 1.4 1.4 == 1.4 # return true, of corse 1.0+0.1+0.1+0.1+0.1 ==1.4 # return false (1.0+0.1+0.1+0.1+0.1) -1.4 # return 4.4..e-16, very small ! but differ from 0. Computer Algebra with fraction is right... F. in France --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" 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/sage-edu?hl=en -~----------~----~----~----~------~----~------~--~---
