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.
How to Make a Cell Reference Absolute in Excel. Using relative references can cause incorrect equations when copying a cell. Excel's default formula notation uses relative cell references. Relative references automatically change when you copy cells with the clipboard or fill handle, making it easier to reuse formulas. In cases where you need Excel to keep the exact cell referenced in a formula, switch the formula to use absolute references by pressing F4 to add a dollar sign to the equation.