Eroare de compilare in evaluator: user.cpp:4: error: 'double y1' redeclared as different kind of symbol /usr/include/bits/mathcalls.h:242: error: previous declaration of 'double y1(double)' user.cpp: In function 'int main()': user.cpp:26: error: assignment of function 'double y1(double)' user.cpp:26: error: cannot convert 'double' to 'double ()(double)throw ()' in assignment user.cpp:27: error: invalid operands of types 'double ()(double)throw ()' and 'double ()(double)throw ()' to binary 'operator*'