Wolfram Alpha
Wolfram Alpha
It's online and I was pleased to find that it accepts Mathematica commands.
Re: Wolfram Alpha
Possibly the most annoying search engine ever.

 Posts: 249
 Joined: Sat Dec 20, 2008 9:34 am
Re: Wolfram Alpha
But also the first search engine that solves differential equations. I wish I had it when I was taking undergrad math classes.
Re: Wolfram Alpha
Wolfram loves Back to the future
http://www23.wolframalpha.com/input/?i=1.21+gigawatts
http://www23.wolframalpha.com/input/?i=88+mph
http://www23.wolframalpha.com/input/?i=1.21+gigawatts
http://www23.wolframalpha.com/input/?i=88+mph
Re: Wolfram Alpha
No hits for "Hill Valley" though.