MOTM

Well, Paul also said that two of the inputs will be reversing 
attenuators, so yes, it will subtract (add with inverse polarity).

Moe

--- In motm@y..., elhardt@a... wrote:
> mate_stubb@y... writes:
> 
> >>Well, add it with positive or negative polarity. In the case of a 
dc 
>  signal, you are adding negative offset. Is that what you meant?<<
> 
> I don't think adding a negative offset is the same as adding an 
inverted 
> signal which would be like subtracting.  Subtracting is what I was 
hoping it 
> will do.
> 
> -Elhardt