张景中:消点法

张景中院士发明的几何证明用"面积法"把"点"(points) 消失, 更容易解难题。华罗庚用20行来证明1978几何(华罗庚出的)赛题, 张只用2行。

张景中:消点法

https://m.toutiaocdn.com/group/6775041261825950221/?app=news_article_lite&timestamp=1577555286&req_id=201912290148060100100540281B5A4A77&group_id=6775041261825950221

例子1:消点法

https://baike.baidu.com/item/%E6%B6%88%E7%82%B9%E6%B3%95/10328295

例子2:几何难题

https://wemp.app/posts/877b2116-5e89-45fe-88cf-c00ed8375154

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