WolframAlpha

Remember the Star Trek computer? It's finally happening--with Wolfram|Alpha. Building on 25 years of development led by Stephen Wolfram, Wolfram|Alpha has rapidly become the world's definitive source for instant expert knowledge and computation. Across thousands of domains--with more continually added--Wolfram|Alpha uses its vast collection of algorithms and data to compute answers and generate reports for you. Parts of Wolfram|Alpha are used in the Apple Siri Assistant; this app gives you access to the full power of the Wolfram|Alpha computational knowledge engine. Domains covered by Wolfram|Alpha include: MATHEMATICS Elementary Math Numbers Plotting Algebra Matrices Calculus Geometry Trigonometry Discrete Math Number Theory Applied Math Logic Functions Definitions STATISTICS & DATA ANALYSIS Descriptive Statistics Regression Statistical Distributions Probability PHYSICS Mechanics Electricity & Magnetism Optics Thermodynamics Relativity Nuclear Physics Quantum Physics Particle Physics Statistical Physics Astrophysics Physical Constants CHEMISTRY Elements Compounds Ions Quantities Solutions Reactions Chemical Thermodynamics Protecting Groups MATERIALS Alloys Minerals Crystallography Plastics Woods Bulk Materials ENGINEERING Acoustics Aeronautics Electric Circuits Fluid Mechanics Steam Tables Psychrometrics Refrigeration Structures ASTRONOMY Star Charts Astronomical Events Planets Moons Minor Planets Comets Space Weather Stars Pulsars Galaxies Star Clusters Nebulae Astrophysics EARTH SCIENCE Geology Geochronology Geodesy Earthquakes Tide Data Atmosphere Climate LIFE SCIENCES Animals & Plants Dinosaurs DNA Sequence Lookup SNPs Proteins Human, Mouse & Fruit Fly Genomes Metabolic Pathways COMPUTATIONAL SCIENCES Cellular Automata Substitution Systems Turing Machines Computational Complexity Algebraic Codes Fractals Mathematica Image Processing UNITS & MEASURES Conversions Comparisons Dimensional Analysis Industrial Measures Batteries Bulk Materials Paint DATES & TIMES Date Computations Time Zones Calendars Holidays Geological Time WEATHER Current & Historical Weather Forecasts Wind Chill Hurricanes Clouds Climate PLACES & GEOGRAPHY Maps Projections Geodesy Navigation Distances Geomagnetism Geocoding Countries Cities Elevation Data Oceans Lakes Rivers Islands Mountains PEOPLE & HISTORY People Genealogy Names Occupations Political Leaders Historical Events, Periods & Countries Historical Numerals & Money CULTURE & MEDIA Books Periodicals Movies Video Games Fictional Characters Mythology Television Networks & Programs Awards MUSIC Musical Notes Intervals Chords Scales Audio Waveforms Instruments Songs WORDS & LINGUISTICS Word Properties Dictionary Lookup Word Puzzles Anagrams Languages Document Length Morse Code Soundex Number Names SPORTS & GAMES Football Baseball Olympics Stadiums Lotteries Card Games COLORS Color Names & Systems Color Addition Temperatures Wavelengths MONEY & FINANCE Stock Data Indices Mutual Funds Futures Mortgages Present Value Currency Conversion Tips Bonds Derivatives Valuation Wages Sales Tax SOCIOECONOMIC DATA Demographics Countries US States US Counties Cities Economics Agriculture Energy Salaries Unemployment Cost of Living Health Care Housing Social Statistics Crime Military Religion HEALTH & MEDICINE Body Measurements Growth Charts Exercise Diseases Mortality Data Medical Test Data Teeth Vision Drug Data Hospitals FOOD & NUTRITION Foods Dietary References EDUCATION International Education Universities School Districts Public Schools Standardized Tests ORGANIZATIONS Companies Hospitals Foundations International Organizations TRANSPORTATION Airports Airlines Aircraft Flight Data Road Transport Gasoline Prices Bridges Tunnels Tides TECHNOLOGICAL WORLD Communications Satellites Space Probes Photography Barcodes WEB & COMPUTER SYSTEMS Website Data IP Lookup Notable Computers Data Transfer Port Numbering String Processing Hashing Unicode Lookup