public class AddTo extends AbstractFunctionEvaluator
| Constructor and Description |
|---|
AddTo() |
| Modifier and Type | Method and Description |
|---|---|
IExpr |
evaluate(IAST ast,
EvalEngine engine)
Symbolic evaluation of a function.
|
protected java.util.function.Function<IExpr,IExpr> |
getFunction(IExpr value,
EvalEngine engine)
Get the evaluation function for AddTo (similar for DivideBy, TimesBy and SubtractFrom).
|
protected ISymbol |
getFunctionSymbol() |
void |
setUp(ISymbol symbol)
Evaluate built-in rules and define Attributes for a function.
|
createRuleFromMethod, getNormalizedNegativeExpression, getNormalizedNegativeExpression, getPeriodicParts, getPureImaginaryPart, getRuleAST, initSerializedRules, isNegativeExpressionnumericEvalprotected java.util.function.Function<IExpr,IExpr> getFunction(IExpr value, EvalEngine engine)
value - the value which is assigned in this statement (i.e. variable += value)protected ISymbol getFunctionSymbol()
public 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 AbstractFunctionEvaluatorast - 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 void setUp(ISymbol symbol)
AbstractFunctionEvaluatorsetUp in interface IEvaluatorsetUp in class AbstractFunctionEvaluatorsymbol - the symbol which should be set up