Tag Archives: line

Finite and infinite regions defined by n lines in the plane

It is well known result in plane geometry: The maximum number of regions defined by n lines in the plane is R(n) = n(n+1)/2 +1. Of course, there are not any parallel pair from these lines. All sets of lines discussed here covers this … Continue reading

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When I die…

When I die…  two points still make a line The constant distance still makes a circle The trilinears and the barycentrics Are still used on triangle center sites. When I die…  something is still mine! Khi tôi chết… hai điểm … Continue reading

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