## SYMBOLANG

Lapidus & Goldstein, 1965. Symbol manipulating Fortran subroutine package for IBM 7094, later CDC 6600.

["Some Experiments in Algebraic Manipulation", CACM 8:501-508 1965].

Last updated: 1995-03-16

### Nearby terms:

SymbMath ♦ **SYMBOLANG** ♦ Symbolic Assembler Program ♦ SYMBOLIC ASSEMBLY

Try this search on Wikipedia, OneLook, Google

## Symbolic Assembler Program

<*language*>

Last updated: 1994-12-12

### Nearby terms:

SYMBOLANG ♦ **Symbolic Assembler Program** ♦ SYMBOLIC ASSEMBLY ♦ Symbolic Automatic INTegrator

Try this search on Wikipedia, OneLook, Google

## SYMBOLIC ASSEMBLY

<*language*>

[Listed in CACM 2(5):16, May 1959].

Last updated: 1996-01-15

### Nearby terms:

Symbolic Assembler Program ♦ **SYMBOLIC ASSEMBLY** ♦ Symbolic Automatic INTegrator

Try this search on Wikipedia, OneLook, Google

## Symbolic Automatic INTegrator

<*mathematics, tool*>

[Sammet 1969, p. 410].

Last updated: 1994-12-08

### Nearby terms:

SYMBOLIC ASSEMBLY ♦ **Symbolic Automatic INTegrator** ♦ symbolic inference

Try this search on Wikipedia, OneLook, Google

## symbolic inference

The derivation of new facts from known facts and inference rules. This is one of the fundamental operations of artificial intelligence and logic programming languages like Prolog.

Inference is a basic part of human reasoning. For example given that all men are mortal and that Socrates is a man, it is a trivial step to infer that Socrates is mortal. We might express these symbolically:

man(X) => mortal(X). man(socrates).("if X is a man then X is mortal" and "Socrates is a man"). Here, "man", "mortal" and "socrates" are just arbitrary symbols which the computer manipulates without reference to or knowledge of their external meaning. A forward chaining system (a production system) could use these to infer the new fact

mortal(socrates).simply by matching the left-hand-side of the implication against the fact and substituting socrates for the variable X.

Last updated: 1994-10-28

### Nearby terms:

Symbolic Automatic INTegrator ♦ **symbolic inference** ♦ Symbolic Link

Try this search on Wikipedia, OneLook, Google

## Symbolic Link

(SYLK) A Microsoft file format for spreadsheets, (not to be confused with symbolic link).

SYLK format existed in one form or another in as early as 1987, and was part of Excel v1.0. It is is an outgrowth of VisiCalc DIF file format.

SYLK format is ascii text and represents information about both formula, value, and some formatting information, which makes it something like an RTF for spreadsheets. It is used as a general tabular data exchange format.

*http://netghost.narod.ru/gff/graphics/summary/micsylk.htm*.

[Reference?]

Last updated: 2004-04-08

### Nearby terms:

symbolic inference ♦ **Symbolic Link** ♦ symbolic link ♦ symbolic logic

Try this search on Wikipedia, OneLook, Google

## symbolic link

(Or "symlink", "soft link" (by contrast with "hard link"), "shortcut", "alias") A special type of Unix file which refers to another file by its pathname. A symbolic link is created with the "ln" (link) command:

ln -s OLDNAME NEWNAMEWhere OLDNAME is the target of the link (usually a pathname) and NEWNAME is the pathname of the link itself.

Most operations (open, read, write) on the symbolic link automatically dereference it and operate on its target (OLDNAME). Some operations (e.g. removing) work on the link itself (NEWNAME).

In contrast with hard links, there are no restrictions on where a symbolic link can point, it can refer to a file on another file system, to itself or to a file which does not even exist (e.g. when the target of the symlink is removed). Such problems will only be detected when the link is accessed.

Last updated: 1997-10-22

### Nearby terms:

Symbolic Link ♦ **symbolic link** ♦ symbolic logic ♦ Symbolic Mathematical Laboratory

Try this search on Wikipedia, OneLook, Google

## symbolic logic

<*logic*>

Last updated: 1995-12-24

### Nearby terms:

symbolic link ♦ **symbolic logic** ♦ Symbolic Mathematical Laboratory

Try this search on Wikipedia, OneLook, Google

## Symbolic Mathematical Laboratory

<*tool, mathematics*>

[Sammet 1969, p.514].

Last updated: 1995-04-16

### Nearby terms:

symbolic logic ♦ **Symbolic Mathematical Laboratory** ♦ symbolic mathematics

Try this search on Wikipedia, OneLook, Google

## symbolic mathematics

(Or "symbolic math") The use of computers to manipulate mathematical equations and expressions in symbolic form, as opposed to manipulating the numerical quantities represented by those symbols. Such a system might be used for symbolic integration or differentiation, substitution of one expression into another, simplification of an expression, change of subject etc.

One of the best known symbolic mathematics software packages is Mathematica. Others include ALAM, ALGY, AMP, Ashmedai, AXIOM*, CAMAL, CAYLEY, CCalc, CLAM, CoCoA(?), ESP, FLAP, FORM, FORMAL, Formula ALGOL, GAP, JACAL, LiE, Macaulay, MACSYMA, Magic Paper, MAO, Maple, Mathcad, MATHLAB, MuMath, Nother, ORTHOCARTAN, Pari, REDUCE, SAC-1, SAC2, SAINT, Schoonschip, Scratchpad I, SHEEP, STENSOR, SYMBAL, SymbMath, Symbolic Mathematical Laboratory, TRIGMAN, UBASIC.

Usenet newsgropup: sci.math.symbolic.

Last updated: 1995-04-12

### Nearby terms:

Symbolic Mathematical Laboratory ♦ **symbolic mathematics** ♦ Symbolic Optimal Assembly Program

Try this search on Wikipedia, OneLook, Google

## Symbolic Optimal Assembly Program

<*language*>

Versions: SOAP I, SOAP II, CASE SOAP III.

[Listed in CACM 2(5):16, May 1959].

Last updated: 1994-11-04

### Nearby terms:

**Symbolic Optimal Assembly Program** ♦ Symbolic Optimum DEUCE Assembly Program

Try this search on Wikipedia, OneLook, Google

## Symbolic Optimum DEUCE Assembly Program

<*language*>

["SODA Manual of Operation", R. C. Brigham and C. G. Bell, School of Elec Eng, U New S Wales, Sydney, NSW, 1958].

Last updated: 1994-11-04

### Nearby terms:

Symbolic Optimal Assembly Program ♦ **Symbolic Optimum DEUCE Assembly Program** ♦ Symbolics, Inc.

Try this search on Wikipedia, OneLook, Google

## Symbolics, Inc.

<*company*>

[Summary?]

Last updated: 2003-11-24

### Nearby terms:

Symbolic Optimum DEUCE Assembly Program ♦ **Symbolics, Inc.** ♦ Symbol Manipulation Program

Try this search on Wikipedia, OneLook, Google

## Symbol Manipulation Program

(SMP) Steven Wolfram's earlier symbol manipulation program, before he turned to Mathematica.

["SMP Handbook", C. Cole, S. Wolfram et al, Caltech 1981].

Last updated: 1995-01-29

### Nearby terms:

Symbolics, Inc. ♦ **Symbol Manipulation Program** ♦ symlink ♦ symmetric

Try this search on Wikipedia, OneLook, Google