Borland C++ 5.6 for Win32 Copyright (c) 1993, 2002 Borland
:
Error E2015 18: Ambiguity between 'std::pow(long double,int)' and 'std::pow(double,int)' in function series_sum(double)
Warning W8057 26: Parameter 'x' is never used in function series_sum(double)
*** 1 errors in Compile ***