| − | A '''geometric rate''' of growth is one that increases by multiplicative fact each time period, as in doubling per century in the case of [[Essay:Best New Conservative Words|Best New Conservative Words]]. | + | A '''geometric rate''' of growth occurs when a series increases in proportion to its current value, as in doubling per century in the case of [[Essay:Best New Conservative Words|Best New Conservative Words]]. Symbolically, this could be written as <br /><br /> |