WolframAlpha search engine WolframAlpha is a privately owned search engine that allows you to “compute éprouvé-level answers using Wolfram’s breakthrough algorithms, knowledgebase, and Détiens technology.” Microsoft's free réflexion-taking app is, a https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=8947967