Uses for Wolfram Alpha in programming [closed]

Question

Now that Wolfram Alpha is released, I am interested in finding out if it can be used as a time-saver in daily programming.

What would you use Wolfram Alpha to do, that earlier took you more time to do manually?

I guess the "Web and Computer systems"-examples is a good start, but there must be more hidden gems that will be really practical for us programmers.

A short list of examples:

• MD5-hashing / SHA-hashing
• Quick lockup of unicode and HTML-codes for symbols
• Color-codes

Please only include one search query per answer, then we can rate them to get the best ones to the top.

(I made this one a community-wiki, since we will be using the voting for ranking)

Note: If some of the links in the answers don't work (eg: wolfram doesn't find any results, then replace all + with spaces..

Answer 1

I might 'save time' by not playing around with it and doing real work instead. :)

Answer 2

Calculating lift coefficients of NACA profiles (example).

(I made a program for this, but it's nice to have the option to do it quick)