Automatic calculations

Wolframalpha
Free
Online
wolframalpha

Wolfram Alpha is an online search engine that answers questions and performs calculations immediately. Their responses are detailed and specific to the concepts entered in their search engine instead of providing a list of documents or web pages as other types of search engines do.

 

Wolfram's introduction | Alpha defined a fundamentally new paradigm for obtaining knowledge and answers, not by searching the web, but by making dynamic calculations based on a vast collection of data, algorithms, and integrated methods.
Providing broad, deep and expert-level knowledge to everyone ... anytime, anywhere.

Wolfram's long-term goal | Alpha is making all systematic knowledge immediately computable and accessible to everyone.

Wolfram | Alpha offers expert-level knowledge and skills to the widest possible range of people, spanning all professions and educational levels.

We work to accept entries completely freely and to serve as a knowledge engine that generates powerful results and presents them with maximum clarity.

Strongly developed for over a decade, Wolfram | Alpha is an ambitious long-term intellectual endeavor that we aim to offer ever-increasing capabilities in the years to come.

With a world-class team and the involvement of outside experts in countless fields, we are constantly working to create what we hope will be a major milestone in the intellectual achievement of the 21st century.