The Wolfram Language has integrated interactive and programmatic access to the full power of the Wolfram|Alpha computational knowledge engine, using it to allow free-form linguistic input of computations and programs, as well as extensive data and computation capabilities that rely on the Wolfram|Alpha knowledgebase and curated data.
( at beginning of input) — use free-form linguistics to generate Wolfram Language output
( at beginning of input) — generate full Wolfram|Alpha output
() — enter free-form linguistics for conversion to inline Wolfram Language input
— open/close complete Wolfram|Alpha output
— Wolfram|Alpha result chosen for use in the Wolfram System
WolframAlpha— get results in many possible forms from Wolfram|Alpha