|
ComplexDoubleRTable.select - access a complex double stored in the ComplexDoubleRTable
|
|
Calling Sequence
|
|
double[] select( int index[] ) throws MapleException
|
|
|
Parameters
|
|
|
index
|
-
|
index of the entry to select
|
|
|
|
|
|
Description
|
|
|
•
|
The select function returns the complex double indexed by index in the ComplexDoubleRTable. The return value is a array of length  .
|
|
•
|
The array returned has the real component stored at index  and the imaginary component stored at index  .
|
|
•
|
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  is stored in the array at position  .
|
|
|
|
Examples
|
|
|
import com.maplesoft.openmaple.*;
|
|
import com.maplesoft.externalcall.MapleException;
|
|
class Example
|
|
{
|
|
public static void main( String notused[] ) throws MapleException
|
|
{
|
|
String mapleArgs[];
|
|
Engine engine;
|
|
ComplexDoubleRTable a1;
|
|
int index[];
|
|
double e[];
|
|
mapleArgs = new String[1];
|
|
mapleArgs[0] = "java";
|
|
engine = new Engine( mapleArgs, new EngineCallBacksDefault(),
|
|
null, null );
|
|
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]):" );
|
|
index = new int[2];
|
|
index[0] = 1;
|
|
index[1] = 1;
|
|
e = a1.select( index );
|
|
System.out.println( "Real: "+e[0] );
|
|
System.out.println( "Imag: "+e[1] );
|
|
index[0] = 2;
|
|
index[1] = 1;
|
|
e = a1.select( index );
|
|
System.out.println( "Real: "+e[0] );
|
|
System.out.println( "Imag: "+e[1] );
|
|
index[0] = 1;
|
|
index[1] = 2;
|
|
e = a1.select( index );
|
|
System.out.println( "Real: "+e[0] );
|
|
System.out.println( "Imag: "+e[1] );
|
|
index[0] = 2;
|
|
index[1] = 2;
|
|
e = a1.select( index );
|
|
System.out.println( "Real: "+e[0] );
|
|
System.out.println( "Imag: "+e[1] );
|
|
}
|
|
}
|
|
|
Executing this code produces the following output.
|
Real: 0.1
|
|
Imag: 0.0
|
|
Real: 0.3
|
|
Imag: 0.3
|
|
Real: 0.2
|
|
Imag: 0.0
|
|
Real: 0.4
|
|
Imag: 0.4
|
|
|
|
|
Download Help Document
Was this information helpful?
