Who travels to a foreign country, but does not understand the language of its inhabitants, gains only half as much from his trip. It is similar with the realm of mathematics: Who does not understand the language of mathematics, she can't understand. In the past, the transmission of mathematical ideas was a problem even for mathematicians. You solved it, by inventing a special script, which is understood by mathematicians in every country in the world.
The following pages will explain the meaning of the characters, reported symbols and words, that you have to know, if you want to read this book for profit. The language of mathematics is unfamiliar at first, but it is not difficult to understand.