WolframAlpha search engine WolframAlpha is a privately owned search engine that allows you to “compute expérimenté-level answers using Wolfram’s breakthrough algorithms, knowledgebase, and Détiens technology.” Microsoft's free renvoi-taking app is, http://ezproxy.cityu.edu.hk/login?url=https://www.google.com/maps?cid=17181058600429158942