Learning Ruby: The Language that Powers Rails"O'Reilly Media, Inc.", 14 mei 2007 - 260 pagina's You don't have to know everything about a car to drive one, and you don't need to know everything about Ruby to start programming with it. Written for both experienced and new programmers alike, Learning Ruby is a just-get-in-and-drive book -- a hands-on tutorial that offers lots of Ruby programs and lets you know how and why they work, just enough to get you rolling down the road.
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... Regular Expressions 74 1.9 and Beyond 78 Review Questions 78. 5. Math ... Basic Math Operations 81 Ranges 85 Inquiring About Numbers 86 More Math Methods 88 Math Functions 88 Rational Numbers 90 Prime Numbers 91 Review Questions 92. 6 ...
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