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Re:Big-O Algorithm Complexity Cheat Sheet by anonymoushn on Saturday May 04, 2013 @01:16PM (#5655519)
The math behind this stuff is in the first third of most calculus textbooks. The CS half can be found in CLRS. You can also probably learn it from TopCoder tutorials or usacogate (I recall there being a mirror of usacogate that did not require you to do all of the problems in order to advance).
Re:Big-O Algorithm Complexity Cheat Sheet by henrikschroder on Saturday May 04, 2013 @01:24PM (#5655557)
CLRS? Why you young whippersnapper! Back in my day it was called CLR, and those three letters were good enough for us! Kids these days...

mmanfrin, it's this book: http://en.wikipedia.org/wiki/Introduction_to_Algorithms

Re:Big-O Algorithm Complexity Cheat Sheet by why-el on Saturday May 04, 2013 @01:28PM (#5655572)
The book along was a little terse for me. The videos from OCW however are priceless, even entertaining sometimes.[1]

[1] http://ocw.mit.edu/courses/electrical-engineering-and-comput...

Re:Big-O Algorithm Complexity Cheat Sheet by jiggy2011 on Saturday May 04, 2013 @01:22PM (#5655541)
I'm very bad at calculus , but I can work out Big O intuitively quite easily.
Re:Big-O Algorithm Complexity Cheat Sheet by dllthomas on Saturday May 04, 2013 @01:27PM (#5655569)
Even average case complexity?
Re:Big-O Algorithm Complexity Cheat Sheet by jiggy2011 on Saturday May 04, 2013 @01:49PM (#5655648)
Enough to guess with a fairly high degree of accuracy.
Re:Big-O Algorithm Complexity Cheat Sheet by eru on Sunday May 05, 2013 @03:19AM (#5657704)
Only for the simple stuff (and that might be good enough for you). Average case complexity is devilishly hard in general, and even worst case complexity is super hard. E.g. try analysing fibonacci heaps `intuitively'.