• The correct answer (out of the ones listed with the question) is actually pretty slow compared to other methods.  Also, the correct answer takes inputs as FLOAT.  That usually doesn't mean much but if you have more than 15 significant digits, you'll see truncation.

    --Jeff Moden


    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.


    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)