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Hello World! Third Edition Computer Programming for Kids and Other Beginners WARREN SANDE CARTER SANDEįor online information and ordering of this and other Manning books, please visit The publisher offers discounts on this book when ordered in quantity.
ANOTHER WORD FOR VARIABLE SPEED SOFTWARE
Dave Briccetti, Software Developer and Teacher, Dave Briccetti Software LLC I’ve been recommending this book to my students since the First Edition came out. Python is my first choice for a real programming language for new programmers, and using this book is a great way to learn it. Sue Gee, I-Programmer Warren and Carter start simply, at the beginning, and take kids or adults all the way to making fun 2D graphical games and simulations. A very good introduction to programming for anyone, young or old, who wants to start learning this vital and highly enjoyable skill. Ben Ooms, Software Engineer, Sogeti If you want to learn programming or teach it to a kid, this is your book. Suitable for anybody who wants to learn to program-young and old alike. The book not only covers programming in Python in a fun way, but also sets the groundwork for good practices that can be used for other programming languages as well. This book is so much fun! -Mason Jenkins, 7th-grade student, Myron B. Elisabet Gordon, 10th-grade student, Eagle Harbor High School A great intro to the world of Python for everyone. Praise for the Second Edition of Hello World! Learning to program can’t be any simpler! -Shawn Stebner, Network Engineer, Intel Corp It made programming seem as easy as frying bacon. Nicholas Negroponte, One Laptop Per Child Project Kari J Stellpflug, Educator, Rochester Public Schools, Rochester MN Computer programming is a powerful tool for children 'to learn learning.' … Children who engage in programming transfer that kind of learning to other things. Josh Cronemeyer, Senior Software Consultant, Thoughtworks I enjoyed the interaction with Carter in the book … My students are really going to enjoy the Digital Pet program! Reminds me of the Tamagotchi Virtual Pet that I had years ago. This book is all you need for the latter. If you teach her two things, then teach her the golden rule and computer programming. Bryan Weingarten, Software Architect I highly recommend this book! -Horst Jens, Python Instructor and Author of Programming While Playing Python is a wonderful language for teaching beginners to program. It is great to see a kid-focused Python book! -Jeffrey Elkner, Educator If you teach your child one thing, teach her the golden rule.
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André Roberge, President, Université Sainte-Anne The authors have created a friendly educational programming book that makes learning fun and painless. John Grayson, Author of Python and Tkinter Programming A fun book to read and learn from! -Dr. Gordon Colquhoun, Computer Consultant, Avalon Consulting Services Python for growing-ups. Praise for the First Edition of Hello World! A great book for little kids and big kids alike. Collecting Things Together: Lists and DictionariesĢ6.
ANOTHER WORD FOR VARIABLE SPEED CODE
You can download the entire code from this post here.12. In a future blog post, I will relax this assumption as well.īesides the original paper (link above in the post), the technique is further elaborated in the two SUGI papers Hashing Rehashed and HASHING: GENERATIONS.įor alternative lookup methods using arrays, read Binary Searching an Array in SAS and Use Binary Search of Array in SAS Table Lookup. Also, we can only do this when all key variables are numeric and integer. Therefore, the approach should be used only when run time is of the very essence. However, the technique is quite advanced. The result is a quite sizable reduction in run time compared to the usual hash object. Also, we compare the run times of the technique to the SAS hash object. We expand the scope of array hashing to handle multiple key and data variables. In this post, we take another look at hashing with temporary arrays in the SAS data step. Proc compare base=hash2 comp=arrayhash2 run %put &sysinfo. Proc compare base=hash2 comp=arrayhash2 run then link traverse if found then do d1 = data1 d2 = data2 end else call missing(d1, d2) output end stop traverse: if k1 = key1 and k2 = key2 then found=1 else if link ne 0 then do h=link link traverse end run Īgain, we verify that the two results are identical. then do link traverse if found then continue do r=r by -1 until (link =.) end link = r h = r end link = 0 key1 = k1 key2 = k2 data1 = d1 data2 = d2 end do until (lr2) set large end=lr2 found=0 h = mod(mod(k1, &hsize.) * 1e4 + k2, &hsize.) if link >. do until (lr1) set small end=lr1 h = mod(mod(k1, &hsize.) * 1e4 + k2, &hsize.) found=0 if link >. Data large ( keep=k1 k2 ) small ( keep=k1 k2 d1 d2 ) Īrray r _temporary_ r=&hsize.