WolframAlpha ( WUULf-rəm-) is an answer engine developed by Wolfram Research. It is offered as an online service that answers factual queries by computing answers from externally sourced data. WolframAlpha was released on May 18, 2009, and is based on Wolfram's earlier product Wolfram Mathematica, a technical computing platform. https://en.wikipedia.org/wiki/WolframAlpha