Its analgesic effects are only partially reversed by naloxone, hence indicating that its opioid action is unlikely the sole factor; tramadol's analgesic effects are also partially reversed by Î±2 adrenergic receptor antagonists like yohimbine and the 5-HT3 receptor antagonist, ondansetron.
Array formulas in versions before Excel 2007 cannot handle whole-column references. In Excel 2007, array formulas can handle whole-column references, but this forces calculation for all the cells in the column, including empty cells. This can be slow to calculate, especially for 1 million rows.
You can sum part or all of that data by creating an array formula in a single cell. Also, notice that the single-cell formula (in cell B13) is completely independent of the multi-cell formula (the formula in cells E2 through E11). This demonstrates another advantage of using array formulas â flexibility.