A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, and plus (+) and minus (−) signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulas are more limiting than chemical names and structural formulas.
Posts about Formula
  • Common Data Cleanup Formulas in Excel

    …-ons for Excel to do the cleanup using Visual Basic, we run Office for Mac which won’t support macros. Instead, we look for straight formulas to assist. I thought I’d share some of those here just so others can use them. Remove Non-Numeric Characters Systems often require phone numbers to be inserted in a specific, 11-digit formula with the country…

    Douglas Karr/ Marketing Technology Blog- 23 readers -
  • How to Calculate the Lifetime Value of Your Mobile App User

    … Value ARPU = Average Revenue Per User. Revenue may come from the application cost, subscription-based revenue, in-app purchases, or advertising revenue. Churn = Percent of customer lost over a given period. Subscription-based applications often annualize their revenue, churn, and expenses. If you’re developing a mobile application, here’s…

    Douglas Karr/ Marketing Technology Blog- 25 readers -