[sage-edu] Re: inequalities

2009-09-22 Thread kcrisman
On Sep 21, 11:17 pm, michel paul wrote: > On Mon, Sep 21, 2009 at 5:53 AM, kcrisman wrote: > > One idea you may want to consider is using Sage strictly *without* any > > > programming per se > > Something that occurred as kind of a surprise - an example problem in our > text involved the incom

[sage-edu] Re: inequalities

2009-09-22 Thread Francois Maltey
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 =

[sage-edu] Re: ANN: FuncDesigner 0.15 - free Python-written framework with automatic differentiation

2009-09-22 Thread R.Jose Briones
Thank you R. Briones. Managua, Nicaragua. 2009/9/15 dmitrey > > FuncDesigner is cross-platform (Windows, Linux, Mac OS etc) Python- > written framework with automatic differentiation (http:// > en.wikipedia.org/wiki/Automatic_differentiation). License BSD allows > to use it in both open- and cl

[sage-edu] Re: inequalities

2009-09-22 Thread michel paul
On Tue, Sep 22, 2009 at 5:15 AM, kcrisman wrote: If you can do a similar one with quadratics, you'll really be in business. Funny thing, in the same problem set (this was a review/preliminary chapter for analysis) was one of those find the border around the rectangle problems: border = x width