Learn how to calculate the ruin factor for a stock system, which measures the risk of bankruptcy in a series of stock operations.
Learn the formula to calculate the market share of any business, based on sold units and income.
Learn how to insert an IP address to an HTML form, and know the IP address belonging of the users who send forms from your website.
Learn how to use Google Analytics API and get a report in a few seconds. Use all the metrics and dimensions you want.
Learn how to get the Social Authority of a Twitter account with Follower Wonk API.