This type of software testing is very informal and unstructured and can be performed by any stakeholder with no reference to any test case or test design documents. The person performing Ad-hoc testing has a good understanding of the domain and workflows of the application to try to find defects and break the software.
Wolfram Alpha is a computational search engine (sometimes referred to as an answer engine). The interface looks similar to that of a regular search engine but queries typed into the search box result answers to specific questions rather than listings of websites that may be relevant to the query.
alpha(Noun) The name of the first letter of the Greek alphabet (u0391, u03B1), followed by beta. In the Latin alphabet it is the predecessor to A. alpha(Noun) Latin alpha. alpha(Noun) The name of the symbols u0391 and u03B1 used in science and mathematics, often interchangeable with the symbols when used as a prefix. alpha(Noun) The return of a given asset or portfolio adjusted for systematic risk.