Revision history [back]

thank you very much!

I think maybe from myhomeland-----China,no any algebra tools(even a math tools for child) was Developed.

I have to run sagemath from a proxy from last month,beause my computer'ISP forrdden all foreign college and many many including :wstein.org,etc

I think no so many people in china run sage,beause China greatwallfire is more higher and dense