Presentation Notes

... However, ML does have updatable (assignable) reference types, so that in those cases where destructive update is the most natural way to express an algorithm, one can express it directly. ML supports information hiding, so that one can implement a data type whose representation is hidden by an inter ...

... However, ML does have updatable (assignable) reference types, so that in those cases where destructive update is the most natural way to express an algorithm, one can express it directly. ML supports information hiding, so that one can implement a data type whose representation is hidden by an inter ...

Mid-semester examination

... table = [[m*n | n <- [2..]] | m <- [1..]] (a) Describe the contents of table. (b) What would hugs/ghci print out if you asked it to display all the values in table? (c) Write a Haskell expression to extract the finite list [5,10,15,20] from table. (5 marks) 7. Our aim is to define a list datatype th ...

... table = [[m*n | n <- [2..]] | m <- [1..]] (a) Describe the contents of table. (b) What would hugs/ghci print out if you asked it to display all the values in table? (c) Write a Haskell expression to extract the finite list [5,10,15,20] from table. (5 marks) 7. Our aim is to define a list datatype th ...

ppt

... – Scheme, which we’ll work with later in the course as well, is dynamically (rather than statically) typed – C++ allows us to explore many type system issues – Please take advantage of the on-line tutorial and reference manual pages that are linked on the course web site – As always, please ask us f ...

... – Scheme, which we’ll work with later in the course as well, is dynamically (rather than statically) typed – C++ allows us to explore many type system issues – Please take advantage of the on-line tutorial and reference manual pages that are linked on the course web site – As always, please ask us f ...

Discussion 2

... Working with Different Data Types Different data types behave differently when we combine them using arithmetic operators. Consider the following expressions. What do you think Python will print? ...

... Working with Different Data Types Different data types behave differently when we combine them using arithmetic operators. Consider the following expressions. What do you think Python will print? ...

Understanding our first program

... values (in this order): 25, 12, 6, 3, 1, 0. When n becomes 0, the program exits the while-loop. ...

... values (in this order): 25, 12, 6, 3, 1, 0. When n becomes 0, the program exits the while-loop. ...

Handout

... • Email from us: Please check your spam filters for mail from [email protected], [email protected], or with [CS1110] in the subject line. ...

... • Email from us: Please check your spam filters for mail from [email protected], [email protected], or with [CS1110] in the subject line. ...

notes

... We could also use infinite lists of booleans to represent real numbers. This is the usual representation of numbers. This representation also corresponds to sequences of intervals, but it has bad programming properties. In this representation, if we know that a number is very close to 1/2 but we do ...

... We could also use infinite lists of booleans to represent real numbers. This is the usual representation of numbers. This representation also corresponds to sequences of intervals, but it has bad programming properties. In this representation, if we know that a number is very close to 1/2 but we do ...

Data types for mCRL2

... Each product (i, j) is optionally labelled by a projection pr i,j . With this projection, the j’th element of summation i can be obtained. If a projection label is left out, the corresponding : is left out. If a summation i does not have any products, it is written as ci ?is ci instead of ci ()?is c ...

... Each product (i, j) is optionally labelled by a projection pr i,j . With this projection, the j’th element of summation i can be obtained. If a projection label is left out, the corresponding : is left out. If a summation i does not have any products, it is written as ci ?is ci instead of ci ()?is c ...

Announcements Python Why Python? What to do today

... Python is a dynamically typed language A variable can hold values of any type A variable can hold different types of values at different times Use type(x) to find out the type of the value x at a given time Use names of types for conversion, comparison ...

... Python is a dynamically typed language A variable can hold values of any type A variable can hold different types of values at different times Use type(x) to find out the type of the value x at a given time Use names of types for conversion, comparison ...

Data Types and Operations On Data

... A small company wants you to write a program to figure out the number of boxes needed to ship book orders without wasting space. They have four types of boxes: extra large, large, medium and small, which can hold 25, 15, 5 and 1 ...

... A small company wants you to write a program to figure out the number of boxes needed to ship book orders without wasting space. They have four types of boxes: extra large, large, medium and small, which can hold 25, 15, 5 and 1 ...

Numbers

... • The data type of an object determines what values it can have and what operations can be performed on it ...

... • The data type of an object determines what values it can have and what operations can be performed on it ...

PS10

... A polymorphic type is a type defined by a polymorphic type expression that consists of a type constructor and type variables (‘a, ‘b, …). For example, the ‘a List type is specified using type variables. Every instantiation of the type variables defines a concrete type. ...

... A polymorphic type is a type defined by a polymorphic type expression that consists of a type constructor and type variables (‘a, ‘b, …). For example, the ‘a List type is specified using type variables. Every instantiation of the type variables defines a concrete type. ...

Short Notes on Haskell and Functional Programming Languages

... principle is changing the contents of stored values (called “variables”). Functional languages have no storage, no statements. In functional languages no value can ever be changed, new values can only be built from existing ones without changing them, this is what happens when expressions are evalua ...

... principle is changing the contents of stored values (called “variables”). Functional languages have no storage, no statements. In functional languages no value can ever be changed, new values can only be built from existing ones without changing them, this is what happens when expressions are evalua ...

Lecture09 - Electrical and Computer Engineering Department

... sort(x :: L) = insert(x, sort(L)). Everything seems to make sense as long as insert does its job. We’ll assume that whenever the number to be inserted is already in the list, then a new copy will be placed to the left of the one already there. Now let’s define insert. Again, the basis case is easy. ...

... sort(x :: L) = insert(x, sort(L)). Everything seems to make sense as long as insert does its job. We’ll assume that whenever the number to be inserted is already in the list, then a new copy will be placed to the left of the one already there. Now let’s define insert. Again, the basis case is easy. ...

ANSI C Programming study guide

... The set of instructions that can be used to construct a program is called a programming language. Programming is the process of writing instructions in a language that the computer can respond to and that other programmers can understand. When English phrases are used to describe an algorithm ...

... The set of instructions that can be used to construct a program is called a programming language. Programming is the process of writing instructions in a language that the computer can respond to and that other programmers can understand. When English phrases are used to describe an algorithm ...

Creating high-performance, statically type

... majority of server implementations continue to be written unsafely and informally in C/C++. In this dissertation we propose an architecture for constructing new implementations of standard Internet protocols which integrates mature formal methods not currently used in deployed servers: (i) static ty ...

... majority of server implementations continue to be written unsafely and informally in C/C++. In this dissertation we propose an architecture for constructing new implementations of standard Internet protocols which integrates mature formal methods not currently used in deployed servers: (i) static ty ...

Creating High-Performance Statically Type

... A typical Internet server finds itself in the middle of a virtual battleground, under constant threat from worms, viruses and other malware seeking to subvert the original intentions of the programmer. In particular, critical Internet servers such as OpenSSH, BIND and Sendmail have had numerous secu ...

... A typical Internet server finds itself in the middle of a virtual battleground, under constant threat from worms, viruses and other malware seeking to subvert the original intentions of the programmer. In particular, critical Internet servers such as OpenSSH, BIND and Sendmail have had numerous secu ...

eBook - Seeing this instead of the website you expected?

... already found in both web pages, and search that before I search the list of URLs from the first web page. But a programmer who is accustomed to thinking in terms of discretemathematical structures might immediately think of a different approach: The URLs in a web page are a set. I'll read each web ...

... already found in both web pages, and search that before I search the list of URLs from the first web page. But a programmer who is accustomed to thinking in terms of discretemathematical structures might immediately think of a different approach: The URLs in a web page are a set. I'll read each web ...