Lecture 2
... This is a common and useful operation. Haskell x = x+1 Assert that x and x+1 are the same value. This equation has no solution. It is a syntactically-valid statement, but it is not solvable. There is no solution for x. So this equation cannot be true! ...
... This is a common and useful operation. Haskell x = x+1 Assert that x and x+1 are the same value. This equation has no solution. It is a syntactically-valid statement, but it is not solvable. There is no solution for x. So this equation cannot be true! ...
CS-Intro-AI-LISP - Geometric and Intelligent Computing Laboratory
... (I WILL PLAY GOD AND CHANGE THAT!) ...
... (I WILL PLAY GOD AND CHANGE THAT!) ...
Drexel-CS-Intro-AI-LISP
... • LISP automatically makes sure that all refs to some symbol actually point to the UNIQUE point in mem that the symbol happens to be stored physically. This way, any info stored w/ it (e.g., its value) is accessible from every ref. • Anytime LISP sees new symbol, it adds the symbol to its storehouse ...
... • LISP automatically makes sure that all refs to some symbol actually point to the UNIQUE point in mem that the symbol happens to be stored physically. This way, any info stored w/ it (e.g., its value) is accessible from every ref. • Anytime LISP sees new symbol, it adds the symbol to its storehouse ...
3. High-Level Functional Programming
... might be bound to different values. This occurs, for example, in the case of the multiply function: multiply(3, 4) gives the same value as multiply(4, 3). Functions that prohibit f(x) from being the same as f(y) when x and y are bound to different values are called oneto-one functions. Functions suc ...
... might be bound to different values. This occurs, for example, in the case of the multiply function: multiply(3, 4) gives the same value as multiply(4, 3). Functions that prohibit f(x) from being the same as f(y) when x and y are bound to different values are called oneto-one functions. Functions suc ...
Lambda the Ultimate - Rice University Campus Wiki
... that the rule uses safe substitution, where safe substitution renames local variables in the code body that is being modified by the substitution to avoid capturing free variables in the argument expression that is being ...
... that the rule uses safe substitution, where safe substitution renames local variables in the code body that is being modified by the substitution to avoid capturing free variables in the argument expression that is being ...
an approach to declarative programming based on a rewriting
... functional and logic programming, has grown over the last decade; see [23] for a recent survey. The operational semantics of many functional logic languages is based on so-called narrowing, which combines the basic execution mechanisms of functional and logic languages, namely rewriting and uni cati ...
... functional and logic programming, has grown over the last decade; see [23] for a recent survey. The operational semantics of many functional logic languages is based on so-called narrowing, which combines the basic execution mechanisms of functional and logic languages, namely rewriting and uni cati ...
Python for Joe Cross
... for _ in xrange(n): velocities = [rndV() for i in xrange(6)] r,g,b = [rndC() for i in xrange(3)] mainParticle = velocities[:3] + [r,g,b] secondParticle = velocities[3:] + [r,g,b] ...
... for _ in xrange(n): velocities = [rndV() for i in xrange(6)] r,g,b = [rndC() for i in xrange(3)] mainParticle = velocities[:3] + [r,g,b] secondParticle = velocities[3:] + [r,g,b] ...
Type Class
... • Referential transparency – symbol always represents the same value – Equational reasoning (equals can be substituted by equals) • easy mathematical manipulation, parallel execution, etc. ...
... • Referential transparency – symbol always represents the same value – Equational reasoning (equals can be substituted by equals) • easy mathematical manipulation, parallel execution, etc. ...
A/x - LAMP | EPFL
... action, the function’s stack frame can be re-used. This is called “tail recursion”. ⇒ Tail-recursive functions are iterative processes. More generally, if the last action of a function is a call to another (possible the same) function, only a single stack frame is needed for both functions. Such ...
... action, the function’s stack frame can be re-used. This is called “tail recursion”. ⇒ Tail-recursive functions are iterative processes. More generally, if the last action of a function is a call to another (possible the same) function, only a single stack frame is needed for both functions. Such ...
- Starter tutorials
... • LET is a function used to create a local scope in which names are temporarily bound to the values of expressions. • LET is often used to factor out common sub-expressions from more complicated expressions. • LET is a shorthand for a LAMBDA expression applied to a parameter. Ex: ...
... • LET is a function used to create a local scope in which names are temporarily bound to the values of expressions. • LET is often used to factor out common sub-expressions from more complicated expressions. • LET is a shorthand for a LAMBDA expression applied to a parameter. Ex: ...
Appendix B
... nonlocal references are resolved at the point of function definition. Static scoping is implemented by associating a closure (instruction pointer and environment pointer) with each function as it is defined. The run-time execution stack maintains static links for nonlocal references. Top-level defin ...
... nonlocal references are resolved at the point of function definition. Static scoping is implemented by associating a closure (instruction pointer and environment pointer) with each function as it is defined. The run-time execution stack maintains static links for nonlocal references. Top-level defin ...
Why Functional Programming Matters
... notation follows Turner’s language Miranda(TM) [Tur85], but should be readable with no prior knowledge of functional languages. (Miranda is a trademark of Research Software Ltd.) The special characteristics and advantages of functional programming are often summed up more or less as follows. Functi ...
... notation follows Turner’s language Miranda(TM) [Tur85], but should be readable with no prior knowledge of functional languages. (Miranda is a trademark of Research Software Ltd.) The special characteristics and advantages of functional programming are often summed up more or less as follows. Functi ...
Chapter 11 - Functional Programming, Part II: ML, Delayed
... execution of a call. It is surprising how often we need a different rule: (define (my-if a b c) (if a b c)) This definition can't work because both b and c are evaluated before the call. Scheme has manual facilities for delaying evaluation of parameters: (define (my-if a b c) (if a (force b) (force ...
... execution of a call. It is surprising how often we need a different rule: (define (my-if a b c) (if a b c)) This definition can't work because both b and c are evaluated before the call. Scheme has manual facilities for delaying evaluation of parameters: (define (my-if a b c) (if a (force b) (force ...
lec4
... E1, E2,...,En - E1 should evaluate to a function and then apply the function value of E1 to the arguments given by the values of E2,...,En. In the base case, there are self evaluating expressions (e.g. numbers and symbols). In addition, various special forms such as quote and if must be handled sep ...
... E1, E2,...,En - E1 should evaluate to a function and then apply the function value of E1 to the arguments given by the values of E2,...,En. In the base case, there are self evaluating expressions (e.g. numbers and symbols). In addition, various special forms such as quote and if must be handled sep ...
recursive functions
... A variable v is called bound in an expression E if there is some use of v in E that is bound by a decleration λv of v in E . A variable v is called f ree in an expression E if there is some use of v in E that is not bound by any decleration λv of v in E . Recursive Functions of Symbolic Expressions ...
... A variable v is called bound in an expression E if there is some use of v in E that is bound by a decleration λv of v in E . A variable v is called f ree in an expression E if there is some use of v in E that is not bound by any decleration λv of v in E . Recursive Functions of Symbolic Expressions ...