![What’s the Deal with Euclid’s Fourth Postulate?](http://blogs.scientificamerican.com/roots-of-unity/files/2014/04/Pythagorean.jpg)
Posts tagged math history
What’s the Deal with EuclidR...
![What’s the Deal with Euclid’s Fourth Postulate?](http://blogs.scientificamerican.com/roots-of-unity/files/2014/04/Pythagorean.jpg)
The Math Wars, Lewis Carroll Style
![The Math Wars, Lewis Carroll Style](http://blogs.scientificamerican.com/roots-of-unity/files/2014/03/lewis-carroll-203x300.jpg)
Chasing the Parallel Postulate
![Chasing the Parallel Postulate](http://blogs.scientificamerican.com/roots-of-unity/files/2014/02/rectangles-300x214.jpg)
Hyperbolic Quotes about Hyperbolic Ge...
![Hyperbolic Quotes about Hyperbolic Geometry](http://blogs.scientificamerican.com/roots-of-unity/files/2014/02/janos-bolyai.jpg)
Exploding Myths about the History of ...
![Exploding Myths about the History of Science](http://blogs.ams.org/blogonmathblogs/files/2013/11/800px-Keplers_Cosmographicum.jpg)
10 Secret Trig Functions Your Math Te...
![10 Secret Trig Functions Your Math Teachers Never Taught You](http://blogs.scientificamerican.com/roots-of-unity/files/2013/09/secret-trig.png)
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