[sage-devel] How to write packages of sage

In my opinion,the packages of matlab are more important than matlab itself. So I wonder if there is any packages of sage,like an implement of some simulation models. And if I want to write some packages of sage,waht format should I use, *.sage or *.py? BTW:If there some cool cases that solve probl

[sage-devel] How to write packages of sage

In my opinion,the packages of matlab are more important than matlab itself. So I wonder if there is any packages of sage,like an implement of some simulation models. And if I want to write some packages of sage,waht format should I use, *.sage or *.py? BTW:If there some cool cases that solve pro