Hi everyone,

I am new about C++. Could you tell me how to calculate/express some functions, such as square, power, sin, cos, etc.

Hi you,

why do you ask about C++ here?

try google: c++ tutorial, or http://www.cplusplus.com/doc/tutorial/

also those thinks, you may find some people have all around - made out of paper with funny black thinks in it.

Men, there are whole buldings with those papery thinks all around their shelfs!

Matej