DRUG CLASS AND MECHANISM: Lamotrigine is an oral drug that is used primarily for treating seizures. It is chemically unrelated to other anti-seizure drugs. The precise mechanism by which lamotrigine exerts its anti-seizure action is not known. The FDA approved lamotrigine in December 1974.
Lesson Summary. This lesson discussed the different types of cell references in Excel. You learned that cell references can be relative, absolute or mixed. The type you use in a formula is important, as each behaves differently when copied or moved.
In less frequent cases, you may want to make a cell reference mixed by preceding either the column or the row value with a dollar sign to lock either the column or the row (for example, $A2 or B$3). To change the type of cell reference: Select the cell that contains the formula. In the formula bar , select the reference that you want to change. Press F4 to switch between the reference types. The following table summarizes how a reference type updates if a formula containing the reference is copied two cells down and two cells to the right.