欧氏几何: 第5公理 : 直线上过一点, 只有 n=1 条平行线
非欧几何:
- 罗氏: n >1 (空间)
- 黎曼: n = 0 (球体)
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World News- US, China plot road map to resolve trade dispute by November: Report August 18, 2018August 18, 2018 12:32 PMWASHINGTON - Chinese and US negotiators are mapping out talks to try to end their trade standoff ahead of planned meetings between US President Donald Trump and Chinese counterpart Xi Jinping at multilateral summits in November, the Wall Street Journal reported on Saturday (Aug 18), citing officials in both nations.
- US, China plot road map to resolve trade dispute by November: Report August 18, 2018
- Mathematics News — ScienceDaily
- More efficient security for cloud-based machine learning August 17, 2018A novel encryption method secures data used in online neural networks, without dramatically slowing their runtimes. This approach holds promise for using cloud-based neural networks for medical-image analysis and other applications that use sensitive data.
- More efficient security for cloud-based machine learning August 17, 2018
- Math Education
- Equity in Mathematics February 29, 2016A guest post by Beth Burroughs, Montana State UniversityYou might have noticed a recent flurry of activity by mathematicians engaged in discussions about the teaching of mathematics. A few examples:The Common Vision project is a joint effort of five organizations in the mathematical sciences (AMATYC, AMS, ASA, MAA and SIAM) focused on modernizing undergradua […]Mathematical Association of America
- Equity in Mathematics February 29, 2016
