>Cool! If you get a chance, please email it to me so I can try to figure out the logic! Again I appreciate the help!

I'll try to get it finished today or tomorrow. Then, you will immediately get your copy.

>>By the way, I would be interested in information from you, about why anybody would need precision higher than 15 significant digits, to include it in the comments.
>
>I'll let you know that as soon as I find out myself, as long as the nda does not prohibit it. The contract starts tomorrow.

A comment in the most general terms would be enough, if the nda allows it. And I don't want to include references to a specific person or company - I only want to know, and write, what use such a precision can have.

BTW, please do speed tests before commiting yourself to my class. You don't need to wait until I finish method .Divide() - you can start testing with .Add() and .Multiply().

Try to find out how many numbers have to be thus processed - you can multiply two 100-digit numbers in a reasonable time (a fraction of a second), but to do thousands, or millions, of operations in a row, is quite a different situation.

I estimate speed can be improved by a factor of about 10, compared with the current implementation, simply working on groups of digits in a row - but for me, this ain't #1 priority right now. The change should be quite simple in the case of the .Add() method. No change is required, of course, in the .Subtract() method.

Hilmar.