ComplexDoubleRTable.assign
assign a complex double into a ComplexDoubleRTable
Calling Sequence
Parameters
Description
Examples
void assign( int index[], double re, double im ) throws MapleException
void assign( int index[], double val[] ) throws MapleException
index
-
index of the entry to assign
re
real component of the complex double
im
imaginary component of the complex double
val
two-element array representing a complex double
The assign function assigns the complex double (constructed from re and im or val) into the element of the ComplexDoubleRTable indexed by index.
The first calling sequence constructs the complex number by assigning re as the real component and im as the imaginary component. The second calling sequence constructs the complex number by assigning val[0] as the real component and val[1] as the imaginary component.
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.
As RTables do not have unique representations, elements of an RTable can be assigned to any time.
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 = new double[2];
e[0] = 0.1;
e[1] = 0.1;
a1.assign( index, e );
index[0] = 2;
a1.assign( index, 0.3, 0.0);
index[1] = 2;
e[0] = 0.2;
e[1] = 0.2;
a1.assign( index, 0.4, 0.0 );
System.out.println( a1 );
}
Executing this code produces the following output.
Array(1..2, 1..2, [[.100000000000000004+.100000000000000004*I,.200000000000000010+.200000000000000010*I],[.299999999999999988+0.*I,.400000000000000022+0.*I]], datatype = complex[8], storage = rectangular, order = Fortran_order)
See Also
ExternalCalling/Java/MapleException
OpenMaple
OpenMaple/Java/API
OpenMaple/Java/ComplexDoubleRTable
OpenMaple/Java/ComplexDoubleRTable/select
OpenMaple/Java/RTable
OpenMaple/Java/RTable/lowerBound
OpenMaple/Java/RTable/upperBound
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