Uses for Wolfram Alpha in programming

Question

Now that Wolfram Alpha is released , I'm interested in being able to use it as a time saver for daily programming.

What would you use Wolfram Alpha to have more manual execution time before?

I think that "Web and computer systems" - examples - are a good start, but there should be more hidden gems that will be really practical for us programmers.

A short list of examples:

• MD5 hash / SHA hash
• Quickly block Unicode and HTML codes for characters
• Color codes

Please specify only one search query for each answer, then we can evaluate it to get the best ones.

(I made this wiki community as we will use voting to rank)

Note. If some of the links in the answers do not work (for example: wolfram does not find any results, then replace all spaces +.

Answer 1

I can "save time" without playing with it and not doing the real work. :)

Answer 2

Calculation of the lifting coefficients of NACA profiles ( example ).

(I made a program for this, but I am pleased to be able to do it quickly)

Answer 3

, , . , , , .

Answer 4

, , , , WA, , , , , , , , . Google, , , , .

OTOH , Colin Laney.

Answer 5

- : MD5- "Wolfram Alpha" ( ): 882b 0be2 79eb 7e88 86cd 3dae 19c1 d267 : a615 9984 9aee b7be 3091 68bc 0ab7?

EDIT: the hash changes every time the same request is made ... what hash is this? http://www14.wolframalpha.com/input/?i=MD5%22Wolfram+Alpha%22