Can anyone provide me with an example of something in VBA which is quite slow
which I can then turn around and substitute with a C++ DLL?

I am looking to build a routine which shows the speed differences of using
VBA code vs VBA code referencing a C++ DLL. It really an excersise in
bulding and running C++ DLLs in VBA.

So effectively the routine will have two options (1 = VBA, 2 = C++). I will
then run the routine based on whatever option, and record the time taken to
finish the routine.

I will then figure out the C++ DLL piece once this first part is completed.
I have heard that matrix math might be a good example of this. Will likely
incorporate this into a looping structure for simulation purposes.

Thanks

EM