ComplexDoubleRTable.select
access a complex double stored in the ComplexDoubleRTable
Calling Sequence
Parameters
Description
Examples
double[] select( int index[] ) throws MapleException
index
-
index of the entry to select
The select function returns the complex double indexed by index in the ComplexDoubleRTable. The return value is a array of length 2.
The array returned has the real component stored at index 0 and the imaginary component stored at index 1.
The index parameter is an array of integers, one for each dimension of the ComplexDoubleRTable. Each integer must be within the bounds determined by lowerBound and upperBound. The index for dimension i is stored in the array at position i−1.
import com.maplesoft.openmaple.*;
import com.maplesoft.externalcall.MapleException;
class Example
{
public static void main( String notused[] ) throws MapleException
String[] mapleArgs = { "java" };
Engine engine = new Engine( mapleArgs, new EngineCallBacksDefault(), null, null );
ComplexDoubleRTable a1 = (ComplexDoubleRTable)engine.evaluate( "Array( 1..2, 1..2, [[0.1,0.2],[0.3+.3*I,0.4+0.4*I]], datatype=complex[8]):" );
int[] index = new int[2];
index[0] = 1;
index[1] = 1;
double[] e = a1.select( index );
System.out.println( "Real: "+e[0] );
System.out.println( "Imag: "+e[1] );
index[0] = 2;
e = a1.select( index );
index[1] = 2;
}
Executing this code produces the following output.
Real: 0.1
Imag: 0.0
Real: 0.3
Imag: 0.3
Real: 0.2
Real: 0.4
Imag: 0.4
See Also
ExternalCalling/Java/MapleException
OpenMaple
OpenMaple/Java/API
OpenMaple/Java/ComplexDoubleRTable
OpenMaple/Java/ComplexDoubleRTable/assign
OpenMaple/Java/ComplexDoubleRTable/selectImaginary
OpenMaple/Java/ComplexDoubleRTable/selectReal
OpenMaple/Java/RTable
OpenMaple/Java/RTable/lowerBound
OpenMaple/Java/RTable/upperBound
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