The next Haskell will be strict
... theory-into-practice (more the thought pattern than actual theorems) Hidden effects are like hire-purchase: pay nothing now, but it catches up with you in the end Enforced purity is like paying up front: painful on Day 1, but usually worth it But we made one big mistake... ...
... theory-into-practice (more the thought pattern than actual theorems) Hidden effects are like hire-purchase: pay nothing now, but it catches up with you in the end Enforced purity is like paying up front: painful on Day 1, but usually worth it But we made one big mistake... ...
The current topic: Scheme Announcements Review: car, cdr, and
... – Next up: Numeric operators, REPL, quotes, functions, conditionals ...
... – Next up: Numeric operators, REPL, quotes, functions, conditionals ...
Chapter 3
... • In mathematical terminology, the function can be written as y=f(x) or f:XY • Domain of f: the set X • Range of f: the set Y • Independent variable: the x in f(x), representing any value from the set X • Dependent variable: the y from the set Y, defined by y=f(x) • Partial function: occurs when f ...
... • In mathematical terminology, the function can be written as y=f(x) or f:XY • Domain of f: the set X • Range of f: the set Y • Independent variable: the x in f(x), representing any value from the set X • Dependent variable: the y from the set Y, defined by y=f(x) • Partial function: occurs when f ...
Chapter 3
... • In mathematical terminology, the function can be written as y=f(x) or f:XY • Domain of f: the set X • Range of f: the set Y • Independent variable: the x in f(x), representing any value from the set X • Dependent variable: the y from the set Y, defined by y=f(x) • Partial function: occurs when f ...
... • In mathematical terminology, the function can be written as y=f(x) or f:XY • Domain of f: the set X • Range of f: the set Y • Independent variable: the x in f(x), representing any value from the set X • Dependent variable: the y from the set Y, defined by y=f(x) • Partial function: occurs when f ...
Structure of Programming Languages – Lecture 6
... In an simple world, each object might have one name, and each name one object. Programming languages are far from simple. (Examples are given in the context of C.) An object can have NO name (the result of a call on malloc). An object can have one name: a local integer variable. An object can have t ...
... In an simple world, each object might have one name, and each name one object. Programming languages are far from simple. (Examples are given in the context of C.) An object can have NO name (the result of a call on malloc). An object can have one name: a local integer variable. An object can have t ...
Functional Programming
... every statement is a function of its input. • Each function (statement) is then evaluated. • This means that a program as a whole is a nested set of function evaluations… and the whole program is a function of its inputs .. which includes functions ! ...
... every statement is a function of its input. • Each function (statement) is then evaluated. • This means that a program as a whole is a nested set of function evaluations… and the whole program is a function of its inputs .. which includes functions ! ...
Why Functional Programming Matters
... All this can be achieved because functional languages allow functions that are indivisible in conventional programming languages to be expressed as a combinations of parts — a general higher-order function and some particular specializing functions. Once defined, such higher-order functions allow ma ...
... All this can be achieved because functional languages allow functions that are indivisible in conventional programming languages to be expressed as a combinations of parts — a general higher-order function and some particular specializing functions. Once defined, such higher-order functions allow ma ...
programming in haskell
... When defining a new function in Haskell, it is useful to begin by writing down its type; Within a script, it is good practice to state the type of every new function defined; When stating the types of polymorphic functions that use numbers, equality or orderings, take care to include the neces ...
... When defining a new function in Haskell, it is useful to begin by writing down its type; Within a script, it is good practice to state the type of every new function defined; When stating the types of polymorphic functions that use numbers, equality or orderings, take care to include the neces ...
ppt
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
scheme1
... LISP Features • S-expression as the universal data type – either as atom (e.g., number, symbol) or a list of atoms or sublists • Functional Programming Style – computation done by applying functions to arguments, functions are first class objects, minimal use of side-effects • Uniform Representatio ...
... LISP Features • S-expression as the universal data type – either as atom (e.g., number, symbol) or a list of atoms or sublists • Functional Programming Style – computation done by applying functions to arguments, functions are first class objects, minimal use of side-effects • Uniform Representatio ...
Principles of Programming Languages - 815338A
... • Curried functions can be used to create new functions by partial evaluation • Partial evaluation means that the function is evaluated with actual parameters for one or more of the leftmost actual parameters ...
... • Curried functions can be used to create new functions by partial evaluation • Partial evaluation means that the function is evaluated with actual parameters for one or more of the leftmost actual parameters ...
Functional Programming in Scheme Functional Programming
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
ppt
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
... – Computation viewed as a mathematical function mapping inputs to outputs – No notion of state, so no need for assignment statements (side effects) – Iteration accomplished through recursion ...
pl11ch15
... • A mathematical function is a mapping of members of one set, called the domain set, to another set, called the range set • A lambda expression specifies the parameter(s) and the mapping of a function in the following form (x) x * x * x for the function cube(x) = x * x * x ...
... • A mathematical function is a mapping of members of one set, called the domain set, to another set, called the range set • A lambda expression specifies the parameter(s) and the mapping of a function in the following form (x) x * x * x for the function cube(x) = x * x * x ...
Programming Language Semantics with Isabelle/HOL
... = {(σ, σ ) | JBKσ = true ∧ (σ, σ ) ∈ JSK; JW K} ∪ {(σ, σ) | JBKσ = f alse} (III.7) This recursive equation is not compositional, since the meaning of the while construct does not depend solely on the meaning of its sub-phrases S and B. That is to say, the right side contains as a sub-phrase the very ...
... = {(σ, σ ) | JBKσ = true ∧ (σ, σ ) ∈ JSK; JW K} ∪ {(σ, σ) | JBKσ = f alse} (III.7) This recursive equation is not compositional, since the meaning of the while construct does not depend solely on the meaning of its sub-phrases S and B. That is to say, the right side contains as a sub-phrase the very ...
scheme1 - Department of Computer Science and Electrical
... • S-expression as the universal data type – either at atom (e.g., number, symbol) or a list of atoms or sublists • Functional Programming Style – computation done by applying functions to arguments, functions are first class objects, minimal use of side-effects • Uniform Representation of Data & Cod ...
... • S-expression as the universal data type – either at atom (e.g., number, symbol) or a list of atoms or sublists • Functional Programming Style – computation done by applying functions to arguments, functions are first class objects, minimal use of side-effects • Uniform Representation of Data & Cod ...
3. High-Level Functional Programming
... mostly in the mathematical sense, rather than giving the extended meaning as a synonym for procedure as is done in the parlance of some programming languages. A function on a set (called the domain of the function) is an entity that associates, with each member of the set, a single item. The key wor ...
... mostly in the mathematical sense, rather than giving the extended meaning as a synonym for procedure as is done in the parlance of some programming languages. A function on a set (called the domain of the function) is an entity that associates, with each member of the set, a single item. The key wor ...
Functional Programming and Compiler Design
... … we can add two numbers, but we can't add a picture to a number, and indeed we can't add two pictures. ...
... … we can add two numbers, but we can't add a picture to a number, and indeed we can't add two pictures. ...
Functional Programming
... thus, there’s no destructive assignment: a = 1; a = 2; -- illegal Referential transparency: Expressions yield the same value each time they are invoked; helps reasoning. Such expression can be replaced with its value without changing the behavior of a program, for example, y = f x and g = h y y th ...
... thus, there’s no destructive assignment: a = 1; a = 2; -- illegal Referential transparency: Expressions yield the same value each time they are invoked; helps reasoning. Such expression can be replaced with its value without changing the behavior of a program, for example, y = f x and g = h y y th ...
Maclennan-chap9-Lisp.ppt
... Some function in LISP are pseudo-function (or procedure). These are functions that have a side effect on the state of computer in addition to computing a result. Example: (set ‘text ‘(to be or not to be)) binds the name (atom) text to the (to be or not to be) that it is a list and return this list. ...
... Some function in LISP are pseudo-function (or procedure). These are functions that have a side effect on the state of computer in addition to computing a result. Example: (set ‘text ‘(to be or not to be)) binds the name (atom) text to the (to be or not to be) that it is a list and return this list. ...
Lisp and Scheme I
... • Is (F A B) a call to F, or is it just data? • All literal data must be quoted (atoms, too) • (QUOTE (F A B)) is the list (F A B) – QUOTE is not a function, but a special form – The arguments to a special form are not evaluated or evaluated in some special manner • '(F A B) is another way to quote ...
... • Is (F A B) a call to F, or is it just data? • All literal data must be quoted (atoms, too) • (QUOTE (F A B)) is the list (F A B) – QUOTE is not a function, but a special form – The arguments to a special form are not evaluated or evaluated in some special manner • '(F A B) is another way to quote ...
Chapter 11 - Functional Programming, Part I: Concepts and Scheme
... a is always evaluated, and, depending on whether the result is #t or #f, either b or c is evaluated and returned as the result. The define function (define x (+ 2 3)): this defines top-level names; the second expression is always evaluated, the first expression is never evaluated -- it must be a nam ...
... a is always evaluated, and, depending on whether the result is #t or #f, either b or c is evaluated and returned as the result. The define function (define x (+ 2 3)): this defines top-level names; the second expression is always evaluated, the first expression is never evaluated -- it must be a nam ...
Appendix B
... The value of a function is determined by the values of its arguments and the context in which the function application appears, and is independent of the history of the execution. The evaluation of a function with the same argument produces the same value every time that it is invoked. ...
... The value of a function is determined by the values of its arguments and the context in which the function application appears, and is independent of the history of the execution. The evaluation of a function with the same argument produces the same value every time that it is invoked. ...
Functional Programming - TAMU Computer Science Faculty Pages
... thus, there’s no destructive assignment: a = 1; a = 2; -- illegal Referential transparency: Expressions yield the same value each time they are invoked; helps reasoning. Such expression can be replaced with its value without changing the behavior of a program, for example, y = f x and g = h y y th ...
... thus, there’s no destructive assignment: a = 1; a = 2; -- illegal Referential transparency: Expressions yield the same value each time they are invoked; helps reasoning. Such expression can be replaced with its value without changing the behavior of a program, for example, y = f x and g = h y y th ...