How to Think Like a Computer Scientist pptx

... computer programs. All programming languages are formal languages. natural language: Any of the languages people speak that have evolved nat- urally. portability: A property of a program that can run ... seen are declarations, assignments, and print state- ments. declaration: A statement that creates a new variable and determines its type. assignment: A statement that assigns a...

Ngày tải lên: 19/01/2014, 16:20

... is called a declaration. The type of a variable determines what kind of values it can store. A char variable can contain characters, and it should come as no surprise that int variables can store ... mathematical ideas or computer programs. All programming languages are formal languages. natural language: Any of the languages people speak that have evolved nat- urally. interpret: To...

Ngày tải lên: 23/03/2014, 22:21

... type. assignment: A statement that assigns a value to a variable. expression: A combination of variables, operators and values that represents a single result value. Expressions also have types, as determined ... out, the material I covered was almost identical to the AP Syllabus. Naturally, when the College Board announced that the AP Exam would switch to Java, I made plans...

Ngày tải lên: 01/08/2014, 23:20

... diagrams To keep track of which variables can be used where, it is sometimes useful to draw a stack diagram. Like state diagrams, stack diagrams show the value of each variable, but they also show ... examples the expressions and are only evaluated once. You can also use a variable as an argument: The name of the variable we pass as an argument ( ) has nothing to do with the name...

Ngày tải lên: 06/03/2014, 16:20

... analo- gous to a word in a natural language. parse: To examine a program and analyze the syntactic s tructure. print statement: An instruction that causes the Python interpreter to display a value on ... Operators and operands Operators are special symbols that represent computations like addition and multiplication. The values the operator uses are called operands. The follow...

Ngày tải lên: 14/03/2014, 15:20

... straightforward: When you declare a variable, you create a named storage location. When you make an assignment to a variable, you give it a value. A common way to represent variables on paper ... are values. To store a value, you have to create a variable. Since the values we want to store are strings, we declare that the new variable is a string: String bob; This st...

Ngày tải lên: 13/06/2014, 16:20

... a value to a variable. state diagram: A graphical representation of a set of variables and the values they refer to. 14 Chapter 2. Variables, expressions and statements The value of is 59, and ... assign to a variable or pass as an argument. For example, is a function that takes a function object as an argument and calls it twice: Here’s an example that uses to call a...

Ngày tải lên: 28/03/2014, 22:20

... Era: Changing the Shape of Corporate America,” Leaders, April–June 1989. ‘‘While the stock market does not always behave rationally, Larry Cun- ningham’s well-articulated and insightful views as ... has taught and lectured widely, in the United States and abroad, at schools and business organizations of all kinds. He has served as a consultant to corporate boards of directors, law and acc...

Ngày tải lên: 24/12/2013, 11:16