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.
An absolute reference in Excel is a cell reference with the $ sign, like $A$1. The dollar sign fixes the reference to a given cell, so that it remains static no matter where the formula moves. In other words, using $ in cell references allows you to copy the formula in Excel without changing references.