access an Algebraic stored in the AlgebraicRTable - Maple Help

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AlgebraicRTable.select - access an Algebraic stored in the AlgebraicRTable

Calling Sequence

Algebraic select( int index[] ) throws MapleException

Parameters

index

-

index of the entry to select

Description

• 

The select function returns the Algebraic object indexed by index in the AlgebraicRTable.

• 

index is an array of integers, one for each dimension of the AlgebraicRTable.  Each integer must be within the bounds determined by lowerBound and upperBound.  The index for dimension i is stored in the array at position i1.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

    public static void main( String notused[] ) throws MapleException

    {

    String mapleArgs[];

    Engine engine;

    AlgebraicRTable a1;

    Algebraic e;

    int index[];

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

    engine = new Engine( mapleArgs, new EngineCallBacksDefault(),

        null, null );

    a1 = (AlgebraicRTable)engine.evaluate( "Array( 1..2, 1..2, [[a,b],[c,d]]):" );

    index = new int[2];

    index[0] = 1;

    index[1] = 1;

    System.out.println( a1.select( index ) );

    index[0] = 2;

    index[1] = 1;

    System.out.println( a1.select( index ) );

    index[0] = 1;

    index[1] = 2;

    System.out.println( a1.select( index ) );

    index[0] = 2;

    index[1] = 2;

    System.out.println( a1.select( index ) );

    }

}

Executing this code produces the following output.

a

c

b

d

See Also

ExternalCalling/Java/MapleException, OpenMaple, OpenMaple/Java/Algebraic, OpenMaple/Java/AlgebraicRTable, OpenMaple/Java/AlgebraicRTable/assign, OpenMaple/Java/API, OpenMaple/Java/RTable, OpenMaple/Java/RTable/lowerBound, OpenMaple/Java/RTable/upperBound


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