Wolfram Alpha – Why you need to sign up?

Wolfram Alpha – The World’s famous search web site since 2009 (18/5).

It is a computational knowledge engine. Each time you type in the question, the answer will calculate(display)  for you.

So, why need to sign up? You can enjoy(<—- copy from the confirmation E-mail)

1) step-by-step solutions (three times a day , get guided help with math problems)

2)Personal Analytics (analyze your Facebook profile!)

Wolfram Alpha - facebook loadingWolfram Alpha - facebook report

3) History and Favourites

4) Preferences (set your preferred unit of measurement, currency, etc)

5) Copyable plaintext


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