Microsoft Excel relies on two fundamental reference types when addressing other cells. Absolute references -- which are denoted with a "$" -- lock a reference, so it will not change when copying the ...

An address or pointer that changes when the target item is moved or the relationship to it has changed. For example, in a spreadsheet, a cell with a relative reference changes its formula when copied ...

I used to play formula roulette every time I dragged the fill handle, hoping Excel wouldn't misinterpret my intentions. Was I supposed to lock the column, the row, or both? Then, the dollar signs ...