Quote Originally Posted by oteel View Post
I find that I implement operator * in Array and NumericalArray
I commented out operator * from Array and what I get:
Why are you commenting out code that your program is calling?

You should stop commenting out code and address the real problem, which I've stated in my previous posts. Your issue is a linker issue, all because you're separating template code into its own compilation unit.

Regards,

Paul McKenzie