Книга довольно хорошо написана в виде рассказов старого человека молодому парню, основанных на событиях его реальной жизни, охватывающей период с нача...
This book is intended for people who want to keep their minds in good shape. For all ages. Mathematics is the simplest and it is easy to learn by example.
This book is intended for people who want to keep their minds in good shape. For all ages. Mathematics is the simplest and it is easy to learn by example.