Package com.singularsys.jep.reals

Class RealFunctionTable

java.lang.Object

com.singularsys.jep.FunctionTable

com.singularsys.jep.reals.RealFunctionTable

All Implemented Interfaces:

JepComponent, Serializable

public class RealFunctionTable
extends FunctionTable

Function table where evaluation is carried out using reals and never complex numbers. Evaluating sqrt(-1) will return NaN rather than a complex number. Function asin(2), acos(2), acosh(0.5), atanh(2), ln(-1), log(-1), lg(-1) also returns NaN. Furthermore, the constant i is not defined.

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.FunctionTable

table

Constructor Summary

Constructors

Modifier	Constructor	Description
	RealFunctionTable()
protected	RealFunctionTable(Map<String,PostfixMathCommandI> tbl)

Method Summary

Modifier and Type	Method	Description
FunctionTable	shallowCopy()	Returns a new shallow copy of this function table.

Methods inherited from class com.singularsys.jep.FunctionTable

addFunction, clear, containsKey, containsValue, entrySet, getFunction, getLightWeightInstance, init, isEmpty, keySet, remove, size, threadSafeMapCopy, toString, values

Methods inherited from class java.lang.Object

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

Constructor Details

RealFunctionTable

public RealFunctionTable()

RealFunctionTable

protected RealFunctionTable(Map<String,PostfixMathCommandI> tbl)

Method Details

shallowCopy

public FunctionTable shallowCopy()

Description copied from class: FunctionTable

Returns a new shallow copy of this function table. Calls the FunctionTable.threadSafeMapCopy() method to ensure the table is safe to use a separate thread. All subclasses should override this method to create a function table of the matching type. A typical implementation would be

          @Override
          public FunctionTable shallowCopy() {
              Map<String,PostfixMathCommandI> newMap = this.threadSafeMapCopy();
        return new myFunctionTable(newMap);
          }
 

using the FunctionTable.threadSafeMapCopy() method to return a copy of the map of operators and a constructor taking this map which uses the FunctionTable(Map) constructor.

Overrides:

shallowCopy in class FunctionTable

Returns:

a new shallow copy of this function table