how to think like a computer scientist learning with ruby pdf

... Expressions and Statements One of the most powerful features of a programming language is the ability to manipulate variables A variable is a name that refers to a value. Assignment Statements An assignment ... evolved naturally Formal languages are languages that are designed by people for specific applications. For example, the notation that mathematicians use is a formal language that is partic‐ularly ... McGhie suggested a clarification • Andrea Zanella translated the book into Italian, and sent a number of corrections alongthe way • Many, many thanks to Melissa Lewis and Luciano Ramalho for excellent

Ngày tải lên: 26/04/2024, 20:12

... poses, like representing mathematical ideas or computer programs Allprogramming languages are formal languages pur-natural language: Any of the languages people speak that have evolved urally nat-interpret: ... idea is straightforward: • When you declare a variable, you create a named storage location Trang 2214 CHAPTER 2 VARIABLES AND TYPES• When you make an assignment to a variable, you give it a value ... seen are declarations, assignments, and output state-ments declaration: A statement that creates a new variable and determines its type.assignment: A statement that assigns a value to a variable

Ngày tải lên: 23/03/2014, 22:21

... declare a variable, you create a named storage location ˆ When you make an assignment to a variable, you give it a value A common way to represent variables on paper is to draw a box with thename ... features of a programming language is the ability to manipulate variables A variable is a named location that stores a value.Values are things that can be printed, stored and (as we’ll see later) ... specificpurposes, like representing mathematical ideas or computer programs.All programming languages are formal languages Trang 3010 Chapter 1 The way of the programnatural language: Any of the languages

Ngày tải lên: 13/06/2014, 16:20

... evolved naturally Formal languages are languages that are designed by people for specific applica-tions For example, the notation that mathematicians use is a formal language that isparticularly ... way to represent variables on paper is to write the name with an arrow pointing to the variable’s value This kind of figure is called a state diagram because Trang 32it shows what state each of ... BOOK In January 1999, I was preparing to teach an introductory programming class in Java I had taught it three times and I was getting frustrated The failure rate in the classwas too high, and, even

Ngày tải lên: 13/04/2019, 01:44

... low-level language: A programming language that is designed to be easy for a computer to run; also called “machine language” or “assembly language” portability: A property of a program that can run ... expressions and statements One of the most powerful features of a programming language is the ability to manipulate variables A variable is a name that refers to a value 2.1 Assignment statements An assignment ... assigns a value to a variable state diagram: A graphical representation of a set of variables and the values they refer to keyword: A reserved word that is used to parse a program; you cannot use

Ngày tải lên: 23/02/2021, 21:53

... một hàm có tên là repeat_lyrics: I'm a lumberjack, and I'm okay I sleep all night and I work all day I'm a lumberjack, and I'm okay I sleep all night and I work all day Song đó không phải ... Không lâu nữa chúng ta sẽ làm quen với các hàm! ↩ 3 Xem Reeves and Nass, { The Media Equation: How People Treat Computers, Television, and New Media Like Real People and Places} ↩ Trang 12Chương ... 76trombones = 'big parade' SyntaxError: invalid syntax >>> more@ = 1000000 SyntaxError: invalid syntax >>> class = 'Advanced Theoretical Zymurgy' SyntaxError: invalid syntax 76trombones

Ngày tải lên: 06/07/2021, 11:01

... this information you mustlook elsewhere I want you to be able to think like a mathematician and so my aim is to give you a bookjam-packed with practical advice and helpful hints on how to acquire ... Maria Veretennikova for reading a preliminary draft.Particular thanks to Margit and Alan with whom I have had many fruitful discussions Mythanks to an anonymous referee and all the people at the ... other hand do not reject advanced books totally since early chapters in a bookoften contain a useful summary of a subject Read with pen and paper at hand Be active – read with pen and paper at hand

Ngày tải lên: 30/03/2020, 20:13

... message will Trang 162.2 VariablesOne of the most powerful features of a programming language is the ability to manipulate variables A variable is aname that refers to a value The assignment statement ... think that because they’ve called some variable average or pi, it will somehow magicallycalculate an average, or magically know that the variable pi should have a value like 3.14159 No! The computerdoesn’t ... multiple operators andoperands are evaluated state snapshot A graphical representation of a set of variables and the values to which they refer, taken at a particularinstant during the program’s execution

Ngày tải lên: 09/09/2022, 20:09

... low-level language A programming language that is designed to be easy for a computer to execute; also called chine language or assembly language ma-natural language Any one of the languages that people ... think that because they’ve called some variable average or pi, it will somehow magicallycalculate an average, or magically know that the variable pi should have a value like 3.14159 No! The computerdoesn’t ... multiple operators andoperands are evaluated state snapshot A graphical representation of a set of variables and the values to which they refer, taken at a particularinstant during the program’s execution

Ngày tải lên: 09/09/2022, 19:47

... road map to follow when evaluating someone,”says Lawrence Land, attorney-at-law Talk about legacy! “I’d rather have a ‘handshake deal’ with a son of integrity, than a forty page document with a ... 0-07-135998-2 All trademarks are trademarks of their respective owners Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to ... explained he was toobusy to talk to me.’ Well the man did call back and was overly pleas-ant to me because he needed me to do the search When I started towork with him I discovered that his manner

Ngày tải lên: 29/12/2013, 21:06

... demonstrated how it shouldwork with two U.S aircraft carriers in 1932 The Imperial Japanese Navy,recognizing the value of the idea, turned an American admiral’s plan intotheir own successful attack against ... important and bafflingproblems Many brilliant people came close to a solution, but they allfailed because of a rule gen-Hundreds of years earlier, Isaac Newton had decreed that time wasabsolute ... devised a short cut to that position and told histroops to move by it Lee’s troops took an extra turn, in a manner ofspeaking, and marched to Spotsylvania before Grant’s army could arrive.Extra turns

Ngày tải lên: 29/07/2014, 03:20

... if necessary Operations is an area where you, as CEO, should honestly be able to say, “not much happens that I don’t know,” and still be able totake that “month vacation.” How? That’s part of the ... disaster and a plant blew up He had to Mass-go to Connecticut to see his boss and explain what had happened.Instead of being irate, they were supportive and encouraging “Iclearly learned you have to ... taking atour It was his way of walking around and listening to the floor peo-ple without stepping into his middle managers “territory.” He couldsee first hand what was going on without appearing

Ngày tải lên: 10/08/2014, 07:21

... tag I had a CEO of a time management company call me three timeswithout even telling me “why.” I kept having to call her back and gether voice mail and ask, “what did she want.” Talk about a ... interesting and challenging is to help people feel they are changing the world That’s what reallymatters to them They want to look at themselves in the mirror withsatisfaction And they want to be able to ... Some want monetary rewards
Some want to be seen as expert
And, some just want quiet appreciation Pay attention to your direct reports and try to isolate each per-son’s primary and secondary

Ngày tải lên: 10/08/2014, 07:21

... administrative and tactical to produce profitand foster that profit into capital appreciation And to share, on aregular basis, that accrued capital with the people who produced it.And you need to do ... understand what is most important, and then you pray alot,” says one CEO THE AREAS WHERE ONLY THE CEO CAN ADD VALUE With the financial indicators in hand, the CEO has to be able to terpret, analyze, ... CEO,Parker Album Co To get good people you often have to entice them away from place else and to do that you have to be someone they want to workwith and for It takes a lot to get them to leave a good

Ngày tải lên: 10/08/2014, 07:21

... their names and their spouses You have a chicken dinner, talk,shake lots of hands, and pass out praise and a company award You meet-go to bed with a migraine And repeat it tomorrow And when you aren’t ... curiosity ofhow to create value
Are a role model and set an example, particularly an example of integrity
Support, mentor, and listen
Walk the talk
Relay and relate information in a manner ... team In a start-up company like oursthings can get a little dicey You are always close to zero-cash, youare facing 10-ton giants on competitive issues and you need to drivehard and fast straight

Ngày tải lên: 10/08/2014, 07:21

... found a young Saudi at the University of Oregon to be his translator and together they traveled to have a meeting withthe Saudi Arabian Monetary Agency George was not hired But asluck would have ... one can find is lack of financial ment and a lack of engagement To be affiliated with a cause tocommit-‘build one’s résumé’ is an unfortunate situation, but it happens,”says Mindy Credi, Director ... treadmill and slot machine.) Everybody wants more balance Jack Linkletter is a radio mentator on leadership Like me, Jack talks with lots of CEOs Heasks them, “What is the most dramatic change you want

Ngày tải lên: 10/08/2014, 07:21

... I was at a department store and someone was ing to locate me When he did I asked how did he find me? He said hewas told to look for a tall, gray-haired man,” says one CEO who stillraces automobiles ... sorta like being in bed with a beautifulwoman, great sex, discussing the upcoming elections, having agreat Merlot with a delicious egg salad sandwich on Rainbowbread That is balance Having a stack ... Larsen’s latest cartoons Having a photo collection from places all around the world and a quiet garden to sit and enjoy them Skiing hard all day and surfing the net at night for the latest ware systems

Ngày tải lên: 10/08/2014, 07:21

... Trang 1BENJAMIN GRAHAM AND INVEST LIKE WARREN BUFFETT Trang 3HOW TO THINK LIKE BENJAMIN GRAHAM AND INVEST LIKE WARREN BUFFETT Lawrence A Cunningham McGraw-Hill New YorkChicago San Francisco ... under-stand and to gauge better than others how a business and its industry are evolving have a decided advantage But it remains important for each investor to come to grips with what is and what ... that stockprices move in a way that cannot be predicted with any systematic accuracy The model dates backto 1900, when it was elaborated in a doctoral dissertation by the French mathematician

Ngày tải lên: 24/07/2015, 10:17

... particulararticle bearing a pencil mark at the heading:Its somewhat ambitious title was ‘The Book of Life’, and it attempted to show how much an observant man might learn by an accurateand systematic ... Slovakia, Eritrea, Palau, Timor Leste, Montenegro, , (Write your answers on a separate sheet of paper) Quiz 10 – What on Earth? Trang 29Some lateral-thinking teasers to tax you.1 A man walks ... inspiration David Kelley: ‘If you keep making the same mistakesagain and again, you aren’t learning anything If you keep making new and different mistakes, that means you are doing new things andlearning

Ngày tải lên: 09/07/2016, 17:32

... acleaner and then as an assistant to the designer Antonio Berardi, before winning a place at CentralSaint Martin’s fashion school on a government grant For his graduation show, he wanted a particularmodel, ... company, as big as any, but retaining the intimacy and fluid communication of a start-up But he was awkward at meetings, and would break out into a sweat if he had to speak inpublic As with Google, ... entrepreneurship to those who start andgrow their own company, because he believed that you do not have to start and grow a company tobehave in an entrepreneurial fashion A corporate manager who finds a novel

Ngày tải lên: 20/10/2018, 10:13