You mean you need to translate this function into expressions that a program can read? Or you know how to do that but do not know how to place it in an algorithm that can be implemented with C++?
If its the first god knows, i can partially decipher it but if there was one thing i wish i had a guide to, or a truly concise glossary of it would be the grammar of this notation.
As for the second then its as easy as pseudocode:
for loop until finished
somedatatype answer = 0;
answer = DoMaths(args...);
somedatatype ans = args used in mathematical expression here