MutableHashTable -- the class of all mutable hash tables

Description

A mutable hash table is a type of hash table whose entries can be changed.

Normally the entries in a mutable hash table are not printed, to prevent infinite loops in the printing routines. To print them out, use peek.

i1 : x = new MutableHashTable

o1 = MutableHashTable{}

o1 : MutableHashTable

i2 : scan(0 .. 30, i -> x#i = i^2)

i3 : x # 20

o3 = 400

i4 : x #? 40

o4 = false

Types of mutable hash table :

CacheTable -- hash tables for caching
Descent
GradedModule -- the class of all graded modules
GradedModuleMap -- the class of all maps between graded modules
GroebnerBasis -- the class of all Gröbner bases
IndexedVariableTable
Package -- the class of all packages
Resolution -- the class of all resolution computations
ScriptedFunctor -- the class of all scripted functors
Type -- the class of all types
Variety -- the class of all algebraic varieties

Methods that use a mutable hash table :

addHook(MutableHashTable,Thing,Function) -- see addHook -- add a hook function to an object for later processing
runHooks(MutableHashTable,Thing,Thing) -- see runHooks -- run the hook functions stored in an object

Fixed objects of class MutableHashTable :

GlobalHookStore -- see addHook -- add a hook function to an object for later processing
Adjacent -- the class of all adjacent expression pairs
AffineVariety -- the class of all affine varieties
AngleBarList -- the class of lists delimited by <| ... |>
Array -- the class of all arrays -- [...]
AssociativeExpression -- the class of associative expressions
AtomicInt -- the class of atomic integers
Bag -- the class of all bags
BasicList -- the class of all basic lists
BettiTally -- the class of all Betti tallies
BinaryOperation -- the class of all binary operation expressions
Boolean -- the class of Boolean values
CacheFunction -- the class of cache functions
CacheTable -- hash tables for caching
CC -- the class of all complex numbers
CC' -- the parent class of all rings of complex numbers
ChainComplex -- the class of all chain complexes
ChainComplexMap -- the class of all maps between chain complexes
CoherentSheaf -- the class of all coherent sheaves
Command -- the class of all commands
CompiledFunction -- the class of all compiled functions
CompiledFunctionBody -- the class of all compiled function bodies
CompiledFunctionClosure -- the class of all compiled function closures
ComplexField -- the class of all complex fields
Constant
Database -- the class of all database files
Descent
Describe -- the class of the output of describe
Dictionary -- the class of all dictionaries
DirectSum (missing documentation)
Divide -- the class of all divide expressions
DocumentTag -- the class of all document tags
Eliminate -- elimination order
EngineRing -- the class of rings handled by the engine
Equation -- the class of all equation expressions
Expression -- the class of all expressions
Ext -- compute an Ext module
File -- the class of all files
fileDictionaries -- local dictionaries for loaded files
FilePosition -- the class of all file positions
FractionField -- the class of all fraction fields
Function -- the class of all functions
FunctionApplication -- the class of all function application expressions
FunctionBody -- the class of function bodies
FunctionClosure -- the class of all function closures
GaloisField -- the class of all Galois fields
GeneralOrderedMonoid -- the class of all ordered free commutative monoids
globalAssignmentHooks -- assignment hooks for global symbols
GlobalDictionary -- the class of all global dictionaries
GradedModule -- the class of all graded modules
GradedModuleMap -- the class of all maps between graded modules
GroebnerBasis -- the class of all Gröbner bases
GroebnerBasisOptions
HashTable -- the class of all hash tables
HeaderType -- a class of lists with abbreviated constructors
HH -- general homology and cohomology functor
hh -- Hodge numbers of a smooth projective variety
Holder -- the class of all holder expressions
Hybrid -- the class of lists encapsulating hybrid strategies
id -- identity map
Ideal -- the class of all ideals
ImmutableType -- the class of immutable types
IndeterminateNumber -- the class of all indeterminate numbers
IndexedVariable -- the class of all indexed variables
IndexedVariableTable
InexactField -- the class of inexact fields
InexactFieldFamily -- the class of all families of inexact fields
InexactNumber
InexactNumber'
InfiniteNumber -- the class of all infinite numbers
Iterator -- class for iterators
Keyword -- the class of all keywords
List -- the class of all lists -- {...}
loadedFiles
LocalDictionary -- the class of all local dictionaries
LowerBound -- the class of lower bound objects
Manipulator -- the class of all file manipulators
MapExpression -- the class of map expressions
Matrix -- the class of all matrices
MatrixExpression -- the class of all matrix expressions
MethodFunction -- a type of method function
MethodFunctionBinary -- a type of method function
MethodFunctionSingle -- a type of method function
MethodFunctionWithOptions -- a type of method function
Minus -- the class of all minus expressions
Module -- the class of all modules
Monoid -- the class of all monoids
MonoidElement -- the class of all monoid elements
MonomialIdeal -- the class of all monomial ideals handled by the engine
MultigradedBettiTally -- the class of all multigraded Betti tallies
MutableHashTable -- the class of all mutable hash tables
MutableList -- the class of all mutable lists
MutableMatrix -- the class of all mutable matrices
Net -- the class of all nets and strings
NetFile -- the class of all net files
Nothing -- the empty class
nullaryMethods
Number -- the class of all numbers
NumberedVerticalList -- a type of visible self-initializing list that prints vertically
OneExpression -- the class all one expressions
OO -- the structure sheaf
Option -- the class of all key-value pairs K => V
OptionTable -- the class of hash tables for optional arguments
OrderedMonoid -- the class of all ordered monoids
Package -- the class of all packages
Parenthesize
Partition -- a type of list representing a partition of a natural number
PolynomialRing -- the class of all ordered monoid rings
Power -- the class of all power expressions
Product -- the class of all product expressions
ProductOrder -- product ordering
Program -- external program object
programPaths -- user-defined external program paths
ProgramRun -- result of running an external program
ProjectiveHilbertPolynomial -- the class of all Hilbert polynomials
ProjectiveVariety -- the class of all projective varieties
Pseudocode -- the class of pseudocodes
QQ -- the class of all rational numbers
QuotientRing -- the class of all quotient rings
RealField -- the class of all real fields
Resolution -- the class of all resolution computations
Ring -- the class of all rings
RingElement -- the class of all ring elements handled by the engine
RingFamily
RingMap -- the class of all ring maps
RowExpression -- the class of all matrix expressions
RR -- the class of all real numbers
RR' -- the parent class of all rings of real numbers
RRi -- the class of all real intervals
ScriptedFunctor -- the class of all scripted functors
SelfInitializingType -- the class of all self initializing types
Sequence -- the class of all sequences -- (...)
Set -- the class of all sets
SheafExpression -- the class of sheaf expressions
sheafExt -- sheaf Ext of coherent sheaves
SheafMap (missing documentation)
SheafOfRings -- the class of sheaves of rings
SparseMonomialVectorExpression -- the class of all sparse monomial vector expressions
SparseVectorExpression -- the class of all sparse vector expressions
String -- the class of all strings
Subscript -- the class of all subscript expressions
Sum -- the class of all sum expressions
SumOfTwists -- the class of all sums of twists
Superscript -- the class of all superscript expressions
Symbol -- the class of all symbols
SymbolBody -- see symbolBody -- symbol bodies
Table -- the class of all table expressions
Tally -- the class of all tally results
Task -- the class of all tasks
TensorProduct (missing documentation)
TestInput -- see tests -- locate a package's tests
Thing -- the class of all things
Time -- the class of all timing results
Tor -- Tor module
Type -- the class of all types
typicalValues -- types of values returned by functions
URL -- a type representing a URL
Variety -- the class of all algebraic varieties
Vector -- the class of all elements of modules that are handled by the engine
VectorExpression -- the class of all vector expressions
VerticalList -- a type of visible self-initializing list that prints vertically
VirtualTally
VisibleList -- the class of all visible lists
WrapperType -- a class of lists with abbreviated constructors
ZeroExpression -- the class of all zero expressions
ZZ -- the class of all integers

For the programmer