DoubleRTable.assign - Maple Programming Help

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DoubleRTable.assign

assign a double into an element of the DoubleRTable

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

void assign( int index[], double val ) throws MapleException

Parameters

index

-

index of the entry to assign

val

-

value to assign into the list

Description

• 

The assign function assigns the Java double val into the element of the DoubleRTable indexed by index.

• 

The index parameter is an array of integers, one for each dimension of the DoubleRTable.  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.

• 

As RTables do not have unique representations, elements of an RTable can be assigned to at any time.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

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

    {

    String mapleArgs[];

    Engine engine;

    DoubleRTable rt;

    int index[];

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

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

        null, null );

    rt = (DoubleRTable)engine.evaluate( "Array( 1..2, 1..2, evalf( [[1/3, 1/4],[1/5,1/6]] ), datatype=float[8] ):" );

    index = new int[2];

    index[0] = 1;

    index[1] = 1;

    rt.assign( index, 2./3 );

    index[0] = 1;

    index[1] = 2;

    rt.assign( index, 2./4 );

    index[0] = 2;

    index[1] = 1;

    rt.assign( index, 2./5 );

    index[0] = 2;

    index[1] = 2;

    rt.assign( index, 2./6 );

    System.out.println( rt );

    }

}

Executing this code produces the following output.

Array(1..2, 1..2, [[.666666666666666630,.500000000000000000],[.400000000000000022,.333333333333333315]], datatype = float[8], storage = rectangular, order = Fortran_order)

See Also

ExternalCalling/Java/MapleException

OpenMaple

OpenMaple/Java/API

OpenMaple/Java/DoubleRTable

OpenMaple/Java/DoubleRTable/select

OpenMaple/Java/RTable

OpenMaple/Java/RTable/lowerBound

OpenMaple/Java/RTable/upperBound

 


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