Package org.matheclipse.core.reflection.system

Class ExpToTrig

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractEvaluator

org.matheclipse.core.reflection.system.ExpToTrig

All Implemented Interfaces:

IFunctionEvaluator, IEvaluator

public class ExpToTrig
extends AbstractEvaluator

 ExpToTrig(expr)
 

Field Summary

Fields inherited from interface org.matheclipse.core.eval.interfaces.IFunctionEvaluator

ARGS_0_0, ARGS_0_1, ARGS_0_1_0, ARGS_0_2, ARGS_0_2_0, ARGS_0_3, ARGS_0_INFINITY, ARGS_1_1, ARGS_1_2, ARGS_1_2_0, ARGS_1_2_1, ARGS_1_2_2, ARGS_1_3, ARGS_1_3_0, ARGS_1_3_1, ARGS_1_3_2, ARGS_1_4, ARGS_1_4_0, ARGS_1_4_1, ARGS_1_4_2, ARGS_1_5, ARGS_1_5_1, ARGS_1_INFINITY, ARGS_1_INFINITY_0, ARGS_1_INFINITY_1, ARGS_2_2, ARGS_2_2_1, ARGS_2_3, ARGS_2_3_0, ARGS_2_3_1, ARGS_2_3_2, ARGS_2_4, ARGS_2_4_1, ARGS_2_4_2, ARGS_2_INFINITY, ARGS_3_3, ARGS_3_4, ARGS_3_5, ARGS_3_6, ARGS_3_INFINITY, ARGS_4_4, ARGS_5_5, ARGS_6_6

Constructor Summary

Constructors

Constructor	Description
ExpToTrig()

Method Summary

Modifier and Type	Method	Description
IExpr	evaluate(IAST ast, EvalEngine engine)	Exponential definitions for trigonometric functions
int[]	expectedArgSize(IAST ast)	At index 0 return the "from", at index 1 return the "to" number of arguments, which are expected by this function.
void	setUp(ISymbol newSymbol)	Evaluate built-in rules and define Attributes for a function.

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractEvaluator

defaultReturn, evalCatched, numericEval

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.matheclipse.core.interfaces.IEvaluator

await, setOptions

Methods inherited from interface org.matheclipse.core.eval.interfaces.IFunctionEvaluator

getOptionSymbols, numericFunction, print, status

Constructor Detail

ExpToTrig

public ExpToTrig()

Method Detail

evaluate

public IExpr evaluate(IAST ast,
                      EvalEngine engine)

Exponential definitions for trigonometric functions

See List of trigonometric identities - Exponential definitions,
Hyperbolic function

Specified by:

evaluate in interface IFunctionEvaluator

Overrides:

evaluate in class AbstractEvaluator

Parameters:

ast - the abstract syntax tree (AST) which should be evaluated

engine - the users current evaluation engine

Returns:

the evaluated object or F#NIL, if evaluation isn't possible

See Also:

Validate

expectedArgSize

public int[] expectedArgSize(IAST ast)

Description copied from interface: IFunctionEvaluator

At index 0 return the "from", at index 1 return the "to" number of arguments, which are expected by this function. If the returned int array has length 3, the function allows headers unequal to the built-in function name (i.e. the function can be in "operator form").

Parameters:

ast - the abstract syntax tree (AST) those arguments should be checked

Returns:

null if no range for the number of arguments is specified.

setUp

public void setUp(ISymbol newSymbol)

Description copied from class: AbstractEvaluator

Evaluate built-in rules and define Attributes for a function.

Specified by:

setUp in interface IEvaluator

Overrides:

setUp in class AbstractEvaluator

Parameters:

newSymbol - the symbol which should be set up