カテゴリー:数学

 

アメリカの傑作オンラインコースを日本で!

 

 

If I were again beginning my studies,

 

I would follow the advice of Plato

 

and start with mathematics.

 

– Galileo Galilei

 

 

Perfect numbers like perfect men are very rare.

 

– Rene Descartes