public class Sum extends Table implements SumRules
| Constructor and Description |
|---|
Sum() |
| Modifier and Type | Method and Description |
|---|---|
IExpr |
definiteSum(IExpr expr,
Iterator iterator,
IAST list,
EvalEngine engine)
Evaluate the definite sum:
Sum[arg1, {var, from, to}] |
IExpr |
evaluate(IAST ast,
EvalEngine engine)
Symbolic evaluation of a function.
|
IAST |
getRuleAST()
Get the predefined rules for this function symbol.
|
IExpr |
indefiniteSum(IExpr arg1,
ISymbol var)
Evaluate the indefinite sum:
Sum[arg1, var] |
void |
setUp(ISymbol symbol)
Evaluate built-in rules and define Attributes for a function.
|
IExpr |
sumPower(IAST powAST,
ISymbol var,
IExpr from,
IExpr to)
|
IExpr |
sumPowerFormula(IExpr from,
IExpr to,
IInteger p)
|
determineIteratorExprVariables, determineIteratorVariables, evalBlockWithoutReap, evaluateLast, evaluateTablecreateRuleFromMethod, getNormalizedNegativeExpression, getNormalizedNegativeExpression, getPeriodicParts, getPureImaginaryPart, initSerializedRules, isNegativeExpressionnumericEvalpublic IAST getRuleAST()
AbstractFunctionEvaluatorgetRuleAST in class AbstractFunctionEvaluatornull if no rules are definedpublic IExpr evaluate(IAST ast, EvalEngine engine)
AbstractFunctionEvaluatorast.get(0) (or alternatively ast.head()) contains the
head (i.e. the function symbol) of this abstract syntax tree (AST). ast.arg1() to ast.get(n) the ast contains the first to n-th argument of the
function (alternatively you get the first to fifth argument with the methods arg1(), arg2(),...
arg5()).Validate class to check the number or types of arguments in the evaluate
method.null value without throwing an exception!evaluate in interface IFunctionEvaluatorevaluate in class Tableast - the abstract syntax tree (AST) which should be evaluatedengine - the users current evaluation enginenull, if evaluation isn't possibleValidate,
IExpr.head(),
IAST.arg1(),
IAST.arg2(),
IAST.arg3()public IExpr definiteSum(IExpr expr, Iterator iterator, IAST list, EvalEngine engine)
Sum[arg1, {var, from, to}]arg1 - the first argument of the Sum[] function.list - constructed as
{Symbol: var, Integer: from, Symbol: to}public IExpr indefiniteSum(IExpr arg1, ISymbol var)
Sum[arg1, var]arg1 - var - public IExpr sumPower(IAST powAST, ISymbol var, IExpr from, IExpr to)
powAST - an AST of the form Power[var, i_Integer]var - from - TODOto - public IExpr sumPowerFormula(IExpr from, IExpr to, IInteger p)
from - TODOto - p - public void setUp(ISymbol symbol) throws SyntaxError
setUp in interface IEvaluatorsetUp in class Tablesymbol - the symbol which should be set upSyntaxError